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Test: Botany Mock Test - 3 - Question 1

Cyclin is associated with

Detailed Solution for Test: Botany Mock Test - 3 - Question 1 Mitosis becz for mitosis cyclin dependent kinase protein is required.
Test: Botany Mock Test - 3 - Question 2

Cell Lineage/"all cells are derived from pre-existing cells" is the famous generalisation of

Test: Botany Mock Test - 3 - Question 3

Which of the following pair is incorrect?

Test: Botany Mock Test - 3 - Question 4

In pachytene stage of meiosis, the chromosomes appear

Test: Botany Mock Test - 3 - Question 5
Cocaine is obtained from
Test: Botany Mock Test - 3 - Question 6
Commercial cork is obtained from
Test: Botany Mock Test - 3 - Question 7
Which one is a source of rubber?
Test: Botany Mock Test - 3 - Question 8
Decomposers are
Test: Botany Mock Test - 3 - Question 9
Energy enters an ecosystem through
Test: Botany Mock Test - 3 - Question 10
Largest flower is that of
Test: Botany Mock Test - 3 - Question 11
The trophic level of a herbivore animal is
Test: Botany Mock Test - 3 - Question 12
Genetic code was discovered by frame shift mutation by
Detailed Solution for Test: Botany Mock Test - 3 - Question 12
A frameshift mutation (also called a framing error or a reading frame shift) is a genetic mutation caused by indels (insertions or deletions) of a number of nucleotides in a DNA sequence that is not divisible by three. Due to the triplet nature of gene expression by codons, the insertion or deletion can change the reading frame (the grouping of the codons), resulting in a completely different translation from the original. The earlier in the sequence the deletion or insertion occurs, the more altered the protein.A frameshift mutation is not the same as a single-nucleotide polymorphism in which a nucleotide is replaced, rather than inserted or deleted. A frameshift mutation will in general cause the reading of the codons after the mutation to code for different amino acids. The frameshift mutation will also alter the first stop codon ("UAA", "UGA" or "UAG") encountered in the sequence. The polypeptide being created could be abnormally short or abnormally long, and will most likely not be functional.

In 1956 Francis Crick described the flow of genetic information from DNA to a specific amino acid arrangement for making a protein as the central dogma.For a cell to properly function, proteins are required to be produced accurately for structural and for catalytic activities. An incorrectly made protein can have detrimental effects on cell viability and in most cases cause the higher organism to become unhealthy by abnormal cellular functions. To ensure that the genome successfully passes the information on, proofreading mechanisms such as exonucleases and mismatch repair systems are incorporated in DNA replication 
Test: Botany Mock Test - 3 - Question 13
Pneumococcus experiment proved that
Test: Botany Mock Test - 3 - Question 14
Okazaki fragment are joined by enzyme
Test: Botany Mock Test - 3 - Question 15
Holy basil is a member of family
Test: Botany Mock Test - 3 - Question 16

From a cross AABb x aaBb, the genotypes AaBB,AaBb,Aabb,aabb will be obtained in the following ratio :

Detailed Solution for Test: Botany Mock Test - 3 - Question 16 1:2:1: 0: because from AABb we got four gametes AB AB Ab Ab , and similarly from aaBb we got four gametes aB aB ab ab and then if we do a cross between this gametes by using punnet square we get 0(zero) -number of AABB individuals, 4 - AaBB , 8 - AaBb , and 4 - Aabb individuals respectively. then by simplifying this we get the ratio 1:2:1:0:
Test: Botany Mock Test - 3 - Question 17
Law of dominance-recessiveness is proved by :
Test: Botany Mock Test - 3 - Question 18
In sickle cell anaemia, there is change in amino acid in β chain at position
Test: Botany Mock Test - 3 - Question 19

The uptake of soil ions, by the root system, is a process of

Test: Botany Mock Test - 3 - Question 20

Azolla has a symbiotic relationship with

Test: Botany Mock Test - 3 - Question 21
Ribulose biphosphate carboxylase oxygenase is located inside
Test: Botany Mock Test - 3 - Question 22
The percentage of light energy utilised for photosynthesis by higher plants is
Test: Botany Mock Test - 3 - Question 23
An essential process connected with photosynthesis is
Test: Botany Mock Test - 3 - Question 24
Which of the following book was not written by Linnaeus ?
Test: Botany Mock Test - 3 - Question 25
The treatment of various types of taxonomic data by computerized methods is
Test: Botany Mock Test - 3 - Question 26
Artificial ripening of fruits is accomplished by treatment with
Test: Botany Mock Test - 3 - Question 27
An important finding in Went's experiment was
Test: Botany Mock Test - 3 - Question 28
The growth of plant is
Detailed Solution for Test: Botany Mock Test - 3 - Question 28 Growth of plants is indeterminate (unlimited) and in humans growth is determinate (limited).
Test: Botany Mock Test - 3 - Question 29
Acid rain will not affect
Test: Botany Mock Test - 3 - Question 30
Acid rain is due to the pollution of
Test: Botany Mock Test - 3 - Question 31
Triple fusion in Capsella/angiosperms is effected by fusion of a male gamete with
Test: Botany Mock Test - 3 - Question 32
Nitrogen fixation occurs in
Test: Botany Mock Test - 3 - Question 33

In embryo sac of a typical angiosperm, there are

Detailed Solution for Test: Botany Mock Test - 3 - Question 33

Test: Botany Mock Test - 3 - Question 34
Polar nuclei are located in
Test: Botany Mock Test - 3 - Question 35
Alcoholic fermentation is carried out by
Test: Botany Mock Test - 3 - Question 36
R.Q. of 4 is obtained when respiratory substrate is
Test: Botany Mock Test - 3 - Question 37

The number of ATP molecules produced by electron transport system from Krebs cycle intermediates in a single turn is

Detailed Solution for Test: Botany Mock Test - 3 - Question 37

Its 11 ATPAs in kreb cycle, at 4 steps oxidation occurs in which 3 NADH2 (3 x 3 ATP) and 1 FADH2 (2ATP) produced . hence 11 ATP generate when they goes to ETS.

Test: Botany Mock Test - 3 - Question 38
Which of the following plants are used as green manure in crop fields and in sandy soils
Test: Botany Mock Test - 3 - Question 39
A stem with distinct solid nodes and hollow internodes is
Test: Botany Mock Test - 3 - Question 40
Phylogenetic classification is one which is based on-
Test: Botany Mock Test - 3 - Question 41
Which of the following theory gives the latest explanation for the closure of stomata ?
Test: Botany Mock Test - 3 - Question 42
The maximum absorption of water by roots occurs in the (region) zone of
Test: Botany Mock Test - 3 - Question 43
Seed germination is accompanied by
Detailed Solution for Test: Botany Mock Test - 3 - Question 43 Correct option is C because heat is very important for seed germination . heat as sunlight is necessary for all seedlings.
Test: Botany Mock Test - 3 - Question 44
In which one of the following pathogens do the cells of promycelium after the germination of teleutospore produce infection hyphae instead of basidiospores?
Test: Botany Mock Test - 3 - Question 45

A simple mechanical tissue with non lignified walls is

Detailed Solution for Test: Botany Mock Test - 3 - Question 45 Collenchyma--- it is a living mechanical tissue it's cell wall is made up of cellulose, hemicellulose and pectin.(i.e. non-lignified)...
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