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All questions of Strategies for Enhancement in Food Production for Grade 12 Exam
Mule is an example of- a)Interspecific hybridisation
- b)Out-breeding
- c)Inbreeding
- d)Cross-breeding
Correct answer is option 'A'. Can you explain this answer?
Mule is an example of
a)
Interspecific hybridisation
b)
Out-breeding
c)
Inbreeding
d)
Cross-breeding
|
Jyoti Kapoor answered |
The mule is an example of an infertile hybrid. Even though horses and donkeys can mate and produce healthy offspring, those offspring cannot pass their genetic information down to future generations, so they are a genetic dead-end. There is no gene flow through infertile hybrids.
Rearing and breeding of fish in ponds, lakes and artificial reservoirs is called- a)Aquaculture
- b)Fishing
- c)Pisciculture
- d)Apiculture
Correct answer is option 'C'. Can you explain this answer?
Rearing and breeding of fish in ponds, lakes and artificial reservoirs is called
a)
Aquaculture
b)
Fishing
c)
Pisciculture
d)
Apiculture
|
Priyanka Sharma answered |
- Pisciculture is the breeding, hatching and rearing of fish in pond tanks and artificial reservoirs under controlled condition. It is also called as fish farming.
- It is a scientific technology for getting maximum fish production from a pond by artificial feeding. It is basically done to raise fish which adds to commercial food stocks.
So, the correct answer is option C.
Which of the following is the examples of biofertilizers ?- a)Green manure
- b)compost manure
- c)BGA and VAM
- d)Green manure & chemical fertilizers
Correct answer is option 'C'. Can you explain this answer?
Which of the following is the examples of biofertilizers ?
a)
Green manure
b)
compost manure
c)
BGA and VAM
d)
Green manure & chemical fertilizers
|
|
Dr . Chanchal. answered |
C) . blue green algae (BGA ) and VAM ( association of fungi with vascular plants .. are bio fertiliser because they do role in nitrogen fixation from the soil ..
Which of the following disease is caused by bacteria?- a)Black rot of crucifers
- b)Late blight of potato
- c)Brown rust of wheat
- d)Red rot of sugarcane
Correct answer is option 'A'. Can you explain this answer?
Which of the following disease is caused by bacteria?
a)
Black rot of crucifers
b)
Late blight of potato
c)
Brown rust of wheat
d)
Red rot of sugarcane
|
Ayush Sengupta answered |
Many diseases of plants are caused by bacteria such as black rot of crucifers. Late blight of potato, red rot of sugar cane is caused by fungi. Brown rust of wheat is also a fungal disease.
The main sugar present in honey isa) Fructose
b) Maltosec) Ribosed) DextroseCorrect answer is option 'A'. Can you explain this answer?
b) Maltose
c) Ribose
d) Dextrose
Correct answer is option 'A'. Can you explain this answer?
|
Rohan Singh answered |
Levulose and dextrose are the simple sugars making up most of the honey. Fructose and glucose are other commonly used names for these sugars. Sucrose (table sugar) also is present in honey, and is one of the main sugars in nectar, along with levulose and dextrose.
Heterosis is- a)Hybrid compatibility
- b)Hybrid vigour
- c)Pollen sterility
- d)Pollen-pistil incompatibility
Correct answer is option 'B'. Can you explain this answer?
Heterosis is
a)
Hybrid compatibility
b)
Hybrid vigour
c)
Pollen sterility
d)
Pollen-pistil incompatibility
|
|
Siddiq Zayeda answered |
The tendency of a cross-bred individual to show qualities superior to those of both parents.
Which of the following is the cyanobacterial group acting as biofertilizer ?- a)Bacillus
- b)Anabaena
- c)Rhizobium
- d)Azotobacter
Correct answer is option 'B'. Can you explain this answer?
Which of the following is the cyanobacterial group acting as biofertilizer ?
a)
Bacillus
b)
Anabaena
c)
Rhizobium
d)
Azotobacter
|
|
Hitakshi Tamta answered |
Biofertilizers are the suspension of microorganism which remains in close association with the roots and converts the atmospheric nitrogen into the soluble form. Anabaena is a genus of filamentous cyanobacteria, that exists as plankton. It is known for its nitrogen fixing abilities and they form symbiotic relationships with certain plants, such as the mosquito fern. Certain species of Anabaena have been used on rice paddy fields, proving to be an effective natural fertilizer.
So, the correct answer is option B.
So, the correct answer is option B.
In cattle, when a cow of good breed is stimulated to produce a large number of eggs, it is called- a)Induction
- b)Superovulation
- c)In vitro fertilisation
- d)Artificial insemination
Correct answer is option 'B'. Can you explain this answer?
In cattle, when a cow of good breed is stimulated to produce a large number of eggs, it is called
a)
Induction
b)
Superovulation
c)
In vitro fertilisation
d)
Artificial insemination
|
Anaya Patel answered |
- Cows of superior breed are injected with FSH like hormones to induce superovulation.
- The eggs are made to fertilise either inside the body of the cow or artificially then zygotes are taken out and implanted in other cows in this way we get large number of offsprings of superior breed in less time.
Select the viral disease of cattle:
- a)Foot and mouth disease
- b)Anthrax
- c)Aspergillosis
- d)Tuberculosis
Correct answer is option 'A'. Can you explain this answer?
Select the viral disease of cattle:
a)
Foot and mouth disease
b)
Anthrax
c)
Aspergillosis
d)
Tuberculosis
|
|
Rohan Singh answered |
Foot-and-mouth disease or hoof-and-mouth disease (Aphthae epizooticae) is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals, including domestic and wild bovids. ... Infection occurs when the virus particle is taken into a cell of the host.
The drug used for deworming poultry birds is- a)Antihistamine
- b)Antibiotic
- c)Antihelminthic
- d)Antiviral
Correct answer is option 'C'. Can you explain this answer?
The drug used for deworming poultry birds is
a)
Antihistamine
b)
Antibiotic
c)
Antihelminthic
d)
Antiviral
|
|
Jyoti Kapoor answered |
Anthelmintics are drugs that are used to treat infections with parasitic worms. This includes both flat worms, e.g., flukes and tapeworms and round worms, i.e., nematodes. They are of huge importance for human tropical medicine and for veterinary medicine. The World Health Organization estimates that a staggering 2 billion people harbour parasitic worm infections . Parasitic worms also infect livestock and crops, affecting food production with a resultant economic impact. Also of importance is the infection of domestic pets. Indeed, the companion animal market is a major economic consideration for animal health companies undertaking drug discovery programmes.
Micropropagation is the- a)Propagation of microbes in vitro
- b)Growing of plants on a small scale
- c)Propagation of cells in vitro
- d)Propagation of plants in vitro
Correct answer is option 'D'. Can you explain this answer?
Micropropagation is the
a)
Propagation of microbes in vitro
b)
Growing of plants on a small scale
c)
Propagation of cells in vitro
d)
Propagation of plants in vitro
|
|
Rajeev Saxena answered |
This method of producing thousands of plants through tissue culture is called micro-propagation. Banana, Apple and Tomato are produced on commercial scale using this method.
Hybrid vigour is due to- a)Emasculation
- b)Linkage
- c)Homozygosity
- d)Heterozygosity
Correct answer is option 'D'. Can you explain this answer?
Hybrid vigour is due to
a)
Emasculation
b)
Linkage
c)
Homozygosity
d)
Heterozygosity
|
Arjun answered |
Hybrid vigour is heterozygosity or...
hybrid vigour is also known as the outbreeding enhancement ,an offspring can be heterotic (heterozygosity) when its traits are enhanced as a result of mixing the genetic contribution of its parents ...
hybrid vigour is also known as the outbreeding enhancement ,an offspring can be heterotic (heterozygosity) when its traits are enhanced as a result of mixing the genetic contribution of its parents ...
Pulses belong to the family of-- a)Malvaceae
- b)Gramineae
- c)Leguminosae
- d)Cruciferae
Correct answer is option 'C'. Can you explain this answer?
Pulses belong to the family of-
a)
Malvaceae
b)
Gramineae
c)
Leguminosae
d)
Cruciferae
|
|
Sanjana Elumalai answered |
Fabaceae is generally legumes
Somaclonal variation appears in plants- a)Raised in tissue culture
- b)Growing in polluted soil or water
- c)Exposed to gamma rays
- d)Transformed by recombinant DNA technology
Correct answer is option 'A'. Can you explain this answer?
Somaclonal variation appears in plants
a)
Raised in tissue culture
b)
Growing in polluted soil or water
c)
Exposed to gamma rays
d)
Transformed by recombinant DNA technology
|
|
Abhishek Ranjan answered |
Somaclonal variation is the variation seen in plants that have been produced by plant tissue culture.Somaclonal variation is not restricted to, but is particularly common in plants regenerated from callus. The variations can be genotypic or phenotypic, which in the latter case can be either genetic or epigenetic in origin. Typical genetic alterations are: changes in chromosome numbers (polyploidy and aneuploidy), chromosome structure (translocations, deletions, insertions, and duplications), and DNA sequence (base mutations) these all make some variations in it...
Which of the following helps in absorption of phosphorus from soil by plants?- a)Anabaena
- b)Frankia
- c)Rhizobium
- d)Glomus
Correct answer is option 'A'. Can you explain this answer?
Which of the following helps in absorption of phosphorus from soil by plants?
a)
Anabaena
b)
Frankia
c)
Rhizobium
d)
Glomus
|
Muskaan Basak answered |
Anabaena is a photoautotrophic algae that generally grows in rice field. It increase the nitrogen in soil along with it also help in absorption of phosphorous from the soil by the plants.
Norin-10 gene is famous for________.- a)Early maturation
- b)Dwarfing effect
- c)Aromatic effect
- d)Gigas effect
Correct answer is option 'B'. Can you explain this answer?
Norin-10 gene is famous for________.
a)
Early maturation
b)
Dwarfing effect
c)
Aromatic effect
d)
Gigas effect
|
|
Aarohi Thakur answered |
Norin-10 gene is famous for Dwarfing effect
Emasculation is required for- a)Selective hybridisation
- b)Natural hybridisation
- c)Self-pollination
- d)Pure lines
Correct answer is option 'A'. Can you explain this answer?
Emasculation is required for
a)
Selective hybridisation
b)
Natural hybridisation
c)
Self-pollination
d)
Pure lines
|
|
Rajat Kapoor answered |
During hybridization, fertilization has to be done by pollen from a desired parent plant. In plants having separate male and female flowers on the same plant as in maize coconut etc., the male flowers are removed. The removal of male parts from bisexual or male flowers is called emasculation.
Cattle feed should contain- a)Roughage
- b)Concentrate
- c)Both of these
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
Cattle feed should contain
a)
Roughage
b)
Concentrate
c)
Both of these
d)
None of these
|
Moumita Khanna answered |
Cattle feed contains protein, energy, minerals and vitamins required for the growth, maintenance and milk production of animals. It increases reproductive efficiency, milk production as well as fat content of milk.
Which of the following scientist’s name is not correctly matched with the theory by them?- a)Pasteur – Theory of Pangenesis
- b)De Vries – Theory of continuity
- c)Weismann – Theory of continuity of Germplasm
- d)Mendel – Inheritance of acquired characters
Correct answer is option 'D'. Can you explain this answer?
Which of the following scientist’s name is not correctly matched with the theory by them?
a)
Pasteur – Theory of Pangenesis
b)
De Vries – Theory of continuity
c)
Weismann – Theory of continuity of Germplasm
d)
Mendel – Inheritance of acquired characters
|
Geetika Shah answered |
The theory of inheritance of acquired traits is given by Weismann. Mendel gave the theories of inheritance that includes the law of dominance, the law of segregation and the law of independent assortment.
More than 70% of the livestock population is in- a)India
- b)Denmark
- c)China
- d)India and China
Correct answer is option 'D'. Can you explain this answer?
More than 70% of the livestock population is in
a)
India
b)
Denmark
c)
China
d)
India and China
|
Shilpa Deshpande answered |
**Explanation:**
**Livestock Population Distribution**
The livestock population refers to the total number of domesticated animals raised for various purposes such as meat, milk, eggs, and other agricultural products. The distribution of livestock population varies across different countries based on factors such as climate, agriculture practices, economic conditions, and cultural preferences.
**Livestock Population in India**
India has a significant livestock population and is one of the largest producers of livestock products in the world. The country has a diverse agricultural system, with a significant number of farmers engaged in livestock farming. Livestock in India include cattle, buffalo, sheep, goats, pigs, and poultry. These animals are reared for milk, meat, eggs, wool, and other products. The livestock sector plays a crucial role in India's rural economy, providing livelihoods to millions of people.
**Livestock Population in China**
China is another country with a substantial livestock population. The Chinese livestock sector is diverse and includes various species such as pigs, poultry, cattle, sheep, and goats. China is the largest producer and consumer of pork in the world, and pork is a staple meat in the Chinese diet. The country also has a significant poultry industry, with high consumption of chicken and eggs. Livestock farming is an essential component of China's agricultural sector, contributing to food security and rural development.
**Combined Livestock Population in India and China**
Considering the large population size of both India and China, it is not surprising that the combined livestock population in these two countries exceeds 70% of the global total. With India and China being the two most populous countries in the world, their livestock sectors are substantial and contribute significantly to global livestock production.
India and China have a long-standing tradition of livestock rearing, and the demand for livestock products in these countries is high due to their large populations. The agricultural practices, climate, and cultural preferences in both countries are conducive to livestock farming, resulting in a substantial livestock population.
Therefore, the correct answer to the given question is option 'D' - India and China, as these two countries together account for more than 70% of the global livestock population.
**Livestock Population Distribution**
The livestock population refers to the total number of domesticated animals raised for various purposes such as meat, milk, eggs, and other agricultural products. The distribution of livestock population varies across different countries based on factors such as climate, agriculture practices, economic conditions, and cultural preferences.
**Livestock Population in India**
India has a significant livestock population and is one of the largest producers of livestock products in the world. The country has a diverse agricultural system, with a significant number of farmers engaged in livestock farming. Livestock in India include cattle, buffalo, sheep, goats, pigs, and poultry. These animals are reared for milk, meat, eggs, wool, and other products. The livestock sector plays a crucial role in India's rural economy, providing livelihoods to millions of people.
**Livestock Population in China**
China is another country with a substantial livestock population. The Chinese livestock sector is diverse and includes various species such as pigs, poultry, cattle, sheep, and goats. China is the largest producer and consumer of pork in the world, and pork is a staple meat in the Chinese diet. The country also has a significant poultry industry, with high consumption of chicken and eggs. Livestock farming is an essential component of China's agricultural sector, contributing to food security and rural development.
**Combined Livestock Population in India and China**
Considering the large population size of both India and China, it is not surprising that the combined livestock population in these two countries exceeds 70% of the global total. With India and China being the two most populous countries in the world, their livestock sectors are substantial and contribute significantly to global livestock production.
India and China have a long-standing tradition of livestock rearing, and the demand for livestock products in these countries is high due to their large populations. The agricultural practices, climate, and cultural preferences in both countries are conducive to livestock farming, resulting in a substantial livestock population.
Therefore, the correct answer to the given question is option 'D' - India and China, as these two countries together account for more than 70% of the global livestock population.
Which of the following is edible by humans as well as relished by livestock?- a)Seeds
- b)Pods
- c)Leaves and tuberous roots
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
Which of the following is edible by humans as well as relished by livestock?
a)
Seeds
b)
Pods
c)
Leaves and tuberous roots
d)
All of the above
|
Nishtha Dasgupta answered |
Seeds are edible. An edible seed is a seed that is suitable for human or animal consumption. Every part of the pod is edible, and it can even be flavored and colored if you feel like working a little variation in. The pods have a shelf-life of just a few days to ensure that the water within them stays fresh. Leaves and tuberous roots are also edible. Tubers are underground plant organs that store important nutrients. Wild tubers and fleshy fruits were among the most important food sources for food gathers prior to agricultural production and are still important to hunter-gatherer tribes in existence today. Leaves are edible above ground parts. Hence, the correct option is d.
The technique of obtaining a large number of plantlets by the tissue culture method is called- a)Plantlet culture
- b)Micropropagation
- c)Macropropagation
- d)Organ culture
Correct answer is option 'B'. Can you explain this answer?
The technique of obtaining a large number of plantlets by the tissue culture method is called
a)
Plantlet culture
b)
Micropropagation
c)
Macropropagation
d)
Organ culture
|
|
Ayaan Madhukar answered |
Bro correct answer is Micro-propagation.
For more enquiries go to NCERT book of class 12 page number 177
For more enquiries go to NCERT book of class 12 page number 177
Which one of the following is a marine fish?- a)Rohu
- b)Catla
- c)Hilsa
- d)Common carp
Correct answer is option 'C'. Can you explain this answer?
Which one of the following is a marine fish?
a)
Rohu
b)
Catla
c)
Hilsa
d)
Common carp
|
|
Rohan Singh answered |
Freshwater edible fished:- Rohu, Catla and Common carp. Marine edible fishes: Sardines, Hilsa, Mackerel and Pomfrets.
“Blue revolution” is related to____.- a)Fish
- b)Clean water
- c)Milk
- d)Oil
Correct answer is option 'A'. Can you explain this answer?
“Blue revolution” is related to____.
a)
Fish
b)
Clean water
c)
Milk
d)
Oil
|
|
Lalit Yadav answered |
Blue revolution is related to fish production. This revolution is brought about by using aquaculture and pisciculture on the line of green revolution for wheat production.
Genetic diversity in agricultural crops is threatened by- a)Intensive use of biopesticides
- b)Introduction of high-yielding varieties
- c)Extensive intercropping
- d)Extensive use of fertilisers
Correct answer is option 'B'. Can you explain this answer?
Genetic diversity in agricultural crops is threatened by
a)
Intensive use of biopesticides
b)
Introduction of high-yielding varieties
c)
Extensive intercropping
d)
Extensive use of fertilisers
|
Smrity answered |
Genetic diversity means that the presence of total number of genetic characteristics in the genome of species . And in agricultural crop it is threatened by introduction if high yielding because they have required traits and they breed purely.
The production of new characteristics by introducing new genes and altering the genome is called- a)Genetics
- b)Totipotency
- c)Gene manipulation
- d)Splicing
Correct answer is option 'C'. Can you explain this answer?
The production of new characteristics by introducing new genes and altering the genome is called
a)
Genetics
b)
Totipotency
c)
Gene manipulation
d)
Splicing
|
|
Kushagra Budhgaya answered |
What explanation do you expect for this question it's simple definition of gene manipulation or genetic engineering
Which of the following is a weedicide?- a)DDT
- b)BHC
- c)2-4 D
- d)Aldrin
Correct answer is option 'C'. Can you explain this answer?
Which of the following is a weedicide?
a)
DDT
b)
BHC
c)
2-4 D
d)
Aldrin
|
|
Priya Menon answered |
2, 4-D is a weedicide. 2,4-Dichlorophenoxyacetic acid is a common systemic herbicide used in the control of broadleaf weeds. It is a synthetic auxin (plant hormone) and one of the most widely used herbicides in the world. 2,4-D is a possible carcinogen as per WHO.2,4-D was one of the ingredients in Agent Orange, a herbicide widely used during the Vietnam War. 2,4-D is primarily used as a selective herbicide which kills many terrestrial and aquatic broadleaf weeds, but not grasses. It acts by mimicking the action of the plant growth hormone auxin, which results in uncontrolled growth and eventually death in susceptible plants.Weed is a wild plant growing where it is not wanted and in competition with cultivated plants. Weedicide is the chemical which kills weeds.
Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium?- a)Not digested by plant enzymes
- b)It does not use in micropropagation work
- c)It does not react with media constituents
- d)Remain stable at incubation temperature
Correct answer is option 'B'. Can you explain this answer?
Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium?
a)
Not digested by plant enzymes
b)
It does not use in micropropagation work
c)
It does not react with media constituents
d)
Remain stable at incubation temperature
|
Dev Patel answered |
Agar is obtained from seaweeds, and it is the most preferred gelling agent due to its advantageous properties.
It is used in some micropropagation work.
It is used in some micropropagation work.
What made Dr M. S. Swaminathan famous?a)Being a horticulturistb)Being a geneticistc)Being a plant breederd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?
|
Varun Awasthi answered |
Being a plant breeder(DR M.S Swaminathan) is a geneticist also, He is also known for his unforgettable role in (GREEN REVOLUTION)
so, both the options are correct in my point of view.
so, both the options are correct in my point of view.
First transgenic plant was tobacco and it contain resistant gene for -- a)Insect resistant
- b)Herbicide resistant
- c) Pest resistant
- d)Frost resistant
Correct answer is option 'B'. Can you explain this answer?
First transgenic plant was tobacco and it contain resistant gene for -
a)
Insect resistant
b)
Herbicide resistant
c)
Pest resistant
d)
Frost resistant
|
|
ภ๏๓คคภ answered |
In 1987, 'Plant Genetic Systems', founded by Marc Van Montagu and Jeff Schell, was the first company to genetically engineer insect-resistant (tobacco) plants by incorporating genes that produced insecticidal proteins from Bacillus thuringiensis (Bt). So, the correct answer is 'Herbicide resistance'.
Single cell protein (SCP) is- a)Protein obtained from unicellular organisms.
- b)Protein obtained from a clone of cells
- c)Protein obtained from biomass of microorganisms
- d)Biomass got from microorganisms
Correct answer is option 'D'. Can you explain this answer?
Single cell protein (SCP) is
a)
Protein obtained from unicellular organisms.
b)
Protein obtained from a clone of cells
c)
Protein obtained from biomass of microorganisms
d)
Biomass got from microorganisms
|
|
Uday Singh answered |
Single cell protein (SCP) is a type of protein obtained from microorganisms. Let's understand it in detail:
What is Single Cell Protein (SCP)?
Single cell protein (SCP) is a protein-rich biomass obtained from microorganisms like bacteria, fungi, yeast, algae, etc. These microorganisms are cultivated under controlled conditions and their biomass is harvested and processed to obtain protein-rich SCP.
How is Single Cell Protein (SCP) obtained?
The process of obtaining SCP involves the following steps:
1. Selection of microorganisms: Microorganisms like bacteria, fungi, yeast, and algae that have high protein content and can be easily cultivated under controlled conditions are selected.
2. Cultivation: The selected microorganisms are cultivated in large-scale bioreactors under controlled conditions of temperature, pH, and nutrient availability.
3. Harvesting: Once the microorganisms reach their maximum growth phase, they are harvested by centrifugation or filtration.
4. Processing: The harvested biomass is processed to remove the unwanted materials like cell walls, lipids, and carbohydrates. The remaining protein-rich biomass is dried and used as SCP.
What are the advantages of Single Cell Protein (SCP)?
Some of the advantages of SCP are:
1. High protein content: SCP has a high protein content of around 60-70% which makes it a good source of protein.
2. Sustainable: SCP can be produced using renewable resources like agricultural waste, wastewater, or even carbon dioxide, making it a sustainable source of protein.
3. Cost-effective: SCP production can be done at a low cost compared to other protein sources like meat or soy.
4. Versatile: SCP can be used as a protein source for animal feed or even as a food ingredient for humans.
Conclusion:
Single cell protein (SCP) is a protein-rich biomass obtained from microorganisms. It has several advantages like high protein content, sustainability, cost-effectiveness, and versatility. SCP has the potential to be an important protein source for both animal and human nutrition.
What is Single Cell Protein (SCP)?
Single cell protein (SCP) is a protein-rich biomass obtained from microorganisms like bacteria, fungi, yeast, algae, etc. These microorganisms are cultivated under controlled conditions and their biomass is harvested and processed to obtain protein-rich SCP.
How is Single Cell Protein (SCP) obtained?
The process of obtaining SCP involves the following steps:
1. Selection of microorganisms: Microorganisms like bacteria, fungi, yeast, and algae that have high protein content and can be easily cultivated under controlled conditions are selected.
2. Cultivation: The selected microorganisms are cultivated in large-scale bioreactors under controlled conditions of temperature, pH, and nutrient availability.
3. Harvesting: Once the microorganisms reach their maximum growth phase, they are harvested by centrifugation or filtration.
4. Processing: The harvested biomass is processed to remove the unwanted materials like cell walls, lipids, and carbohydrates. The remaining protein-rich biomass is dried and used as SCP.
What are the advantages of Single Cell Protein (SCP)?
Some of the advantages of SCP are:
1. High protein content: SCP has a high protein content of around 60-70% which makes it a good source of protein.
2. Sustainable: SCP can be produced using renewable resources like agricultural waste, wastewater, or even carbon dioxide, making it a sustainable source of protein.
3. Cost-effective: SCP production can be done at a low cost compared to other protein sources like meat or soy.
4. Versatile: SCP can be used as a protein source for animal feed or even as a food ingredient for humans.
Conclusion:
Single cell protein (SCP) is a protein-rich biomass obtained from microorganisms. It has several advantages like high protein content, sustainability, cost-effectiveness, and versatility. SCP has the potential to be an important protein source for both animal and human nutrition.
To meet the demands of society, the in vitro production of a large number of plantlets in a short duration practised in the floriculture and horticulture industry is called- a)Hybridoma technology
- b)Somatic hybridisation
- c)Micropropagation
- d)Somaclonal variation
Correct answer is option 'C'. Can you explain this answer?
To meet the demands of society, the in vitro production of a large number of plantlets in a short duration practised in the floriculture and horticulture industry is called
a)
Hybridoma technology
b)
Somatic hybridisation
c)
Micropropagation
d)
Somaclonal variation
|
Siva Kala answered |
Producing many plants from a explant is called micropropagation
Artificial mutation can be created by _____?- a)Alpha radiation
- b)UV radiation
- c)X-ray radiation
- d)Gamma radiation
Correct answer is option 'D'. Can you explain this answer?
Artificial mutation can be created by _____?
a)
Alpha radiation
b)
UV radiation
c)
X-ray radiation
d)
Gamma radiation
|
Krish Chakraborty answered |
Mutation is the sudden change in the base pair of genome naturally or artificially. Gamma radiation is used to create artificial hybridization in plants to create variations.
The species of Saccharum originally grown in India was- a)S. boulardii
- b)S. barberi
- c)S. officinarum
- d)S. munja
Correct answer is 'B'. Can you explain this answer?
The species of Saccharum originally grown in India was
a)
S. boulardii
b)
S. barberi
c)
S. officinarum
d)
S. munja
|
|
Pooja Mehta answered |
Saccharum barberi. Saccharum barberi is a strong-growing species of grass in the genus Saccharum, the sugarcanes. It originates from northern India and has been exported to other countries and grown for the production of sugar.
Lycopersicum esculentum is the botanical name of-- a)Potato
- b)Radish
- c)Cabbage
- d)Tomato
Correct answer is option 'D'. Can you explain this answer?
Lycopersicum esculentum is the botanical name of-
a)
Potato
b)
Radish
c)
Cabbage
d)
Tomato
|
|
Kadambala Hemalatha answered |
Option D is correct becose i will eliminate one by one potato scientific name is solanum tubarosam, reddish scientific name is rafanus sativus, cabbage sintefic name is brassica oleracea var. capitata, tomato scientific name is lycopercicum esculentum. both potato and tomato belong's to same family solanacea.
Which of the following Pairs is mismatched ?- a)Azospirillum - maize
- b)Mycorrhiza -Pine
- c)VAM - Mycoherbicide
- d)Rotenone – Natural insecticide
Correct answer is option 'C'. Can you explain this answer?
Which of the following Pairs is mismatched ?
a)
Azospirillum - maize
b)
Mycorrhiza -Pine
c)
VAM - Mycoherbicide
d)
Rotenone – Natural insecticide
|
|
Awantika Gupta answered |
VAM is a type of mycorrhiza.
Mycorrhiza is mutual relationship between fungi and root of higher plant.
Mycorrhiza is mutual relationship between fungi and root of higher plant.
Honey is the food of high nutritive value and find use in?- a)Homeopathic system of medicine
- b)Allopathic system of medicine
- c)Indigenous system of medicine
- d)All of the these
Correct answer is option 'C'. Can you explain this answer?
Honey is the food of high nutritive value and find use in?
a)
Homeopathic system of medicine
b)
Allopathic system of medicine
c)
Indigenous system of medicine
d)
All of the these
|
Ishaan Menon answered |
Honey is the food of high nutritive value and finds use in Indigenous system of medicine. Beeswax is used in preparation of cosmetic and polishes.
Seeds of different cereals and legumes are -- a)Orthodox seed
- b)Recalcitrant seed
- c)Both (1) and (2)
- d)None of these
Correct answer is option 'A'. Can you explain this answer?
Seeds of different cereals and legumes are -
a)
Orthodox seed
b)
Recalcitrant seed
c)
Both (1) and (2)
d)
None of these
|
|
Vignesh answered |
The seeds that can tolerate drying and can remain viable for years are called orthodox seeds. These seeds are stored at low temperatures by drying them such that the moisture content is less than 10%. The seeds are stored till the next sowing period. Cereal and legume seeds are of orthodox type. Thus the correct answer is option A.
BGA is chiefly used as biofertilizer in the crop of- a)Wheat
- b)Gram
- c)Mustard
- d)Paddy
Correct answer is option 'D'. Can you explain this answer?
BGA is chiefly used as biofertilizer in the crop of
a)
Wheat
b)
Gram
c)
Mustard
d)
Paddy
|
|
Rahul answered |
BGA (blue-green algae) are used as a biofertilizer in paddy crop which increase fertility by nitrogen fixation.
The first inorganic pesticide to be used commercially was -- a)Bordeaux mixture
- b)Burgandy mixture
- c)DDT
- d)2- 4D
Correct answer is option 'A'. Can you explain this answer?
The first inorganic pesticide to be used commercially was -
a)
Bordeaux mixture
b)
Burgandy mixture
c)
DDT
d)
2- 4D
|
|
Nishita Dabas answered |
Bordeaux mixture (also called Bordo Mix) is a mixture of copper(II) sulfate (CuSO4) and slaked lime (Ca(OH)2) used as a fungicide. It is used in vineyards, fruit-farms and gardens to prevent infestations of downy mildew, powdery mildew and other fungi. It is sprayed on plants as a preventative; its mode of action is ineffective after a fungus has become established. It was invented in the Bordeaux region of France in the late 19th century. If it is applied in large quantities annually for many years, the copper in the mixture eventually becomes a pollutant. So, it is the first inorganic pesticide to be used commercially compared to Burgandy mixture, DDT and 2,4-D. Thus, option A is correct.
Which of the following terms is used to describe the component isolated from a plant for in vitro culturing in the specific medium?- a)Explant
- b)Callus
- c)Embryoid
- d)Synthetic seeds
Correct answer is option 'A'. Can you explain this answer?
Which of the following terms is used to describe the component isolated from a plant for in vitro culturing in the specific medium?
a)
Explant
b)
Callus
c)
Embryoid
d)
Synthetic seeds
|
Preethi Bose answered |
A cell, organ or piece of tissue which has been transferred from plants to a nutrient medium.
Which variety of wheat is used as donor for high protein?- a)IR-8
- b)Sonalika
- c)Atlas 66
- d)Himgiri
Correct answer is option 'C'. Can you explain this answer?
Which variety of wheat is used as donor for high protein?
a)
IR-8
b)
Sonalika
c)
Atlas 66
d)
Himgiri
|
|
Geetika Shah answered |
Plant hybridization is also done to increase in nutritive value of crop plants. Wheat variety Atlas 66 has high protein value that is used as donor for high protein variety.
The biggest constraint of plant breeding is- a)Trained manpower
- b)Transfer of genes from unrelated sources
- c)Availability of the desirable gene in the crop and its wild relatives
- d)Infrastructure
Correct answer is option 'B'. Can you explain this answer?
The biggest constraint of plant breeding is
a)
Trained manpower
b)
Transfer of genes from unrelated sources
c)
Availability of the desirable gene in the crop and its wild relatives
d)
Infrastructure
|
|
Rajeev Saxena answered |
The biggest constraint of plant breeding is availability of desirable gene in the crop and its wild relatives.
The seeds which can tolerate reduction in moisture and temperature are called –- a)Dormant seed
- b)Vernalized seed
- c)Orthodox seed
- d)Recalcitrant seed
Correct answer is option 'C'. Can you explain this answer?
The seeds which can tolerate reduction in moisture and temperature are called –
a)
Dormant seed
b)
Vernalized seed
c)
Orthodox seed
d)
Recalcitrant seed
|
|
Hitakshi Tamta answered |
Orthodox seeds are seeds which will survive drying and/or freezing during ex-situ conservation. According to information from the U.S. Department of Agriculture, there is variation in the ability of orthodox seeds to withstand drying and storage with some seeds being more sensitive than others. Thus, some seeds are considered intermediate in their storage capability while others are fully orthodox. Whereas, recalcitrant seeds (sometimes known as unorthodox seeds) are seeds that do not survive drying and freezing during ex-situ conservation. A dormant seed is one that is unable to germinate in a specified period of time under a combination of environmental factors that are normally suitable for germination. Vernalization is the acquisition of a plant's ability to flower in the spring by exposure to the prolonged cold of winter or by an artificial equivalent. Thus, the correct answer is option 'C'.
Most herbicide interfere with :- a)Water absorption
- b)Translocation of sugar
- c)Photolysis of water
- d)CO2 absorption
Correct answer is option 'C'. Can you explain this answer?
Most herbicide interfere with :
a)
Water absorption
b)
Translocation of sugar
c)
Photolysis of water
d)
CO2 absorption
|
|
Raghav Bansal answered |
A large number of different herbicide classes inhibit photosynthesis by binding to the quinone-binding protein, D-1, to prevent photosynthetic electron transfer. Mostly they interfere with photolysis of water. Herbicides does not interfere with water absorption, translocation of sugar and CO2 absorption.
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