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Test: Plant Breeding (Old NCERT) - NEET MCQ


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20 Questions MCQ Test Biology Practice Tests: CUET Preparation - Test: Plant Breeding (Old NCERT)

Test: Plant Breeding (Old NCERT) for NEET 2024 is part of Biology Practice Tests: CUET Preparation preparation. The Test: Plant Breeding (Old NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: Plant Breeding (Old NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Plant Breeding (Old NCERT) below.
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Test: Plant Breeding (Old NCERT) - Question 1

Which of the following is incorrectly matched?

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 1

The causal organism of late blight of potato is phytophthora infestans (a fungus). It is carried through tubers. Symptoms appear first as water soaked areas along the margins and tips of lower leaflets. The spots enlarge rapidly, become necrotic, turn brown and then blackish or blighted.

Test: Plant Breeding (Old NCERT) - Question 2

Which of the following diseases is caused by bacteria?

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 2

The pathogen responsible for black rot of crucifer is a bacteria; Xanthomonas campestris. It lives on the plant residue in the soil or in the seed. In a germinating seed, the bacterium enters through the stomata and first spreads intercellularly in the substomatal region and then systemically into the vascular bundle. First sign of the disease appears near leaf margin, characterized by chlorosis, which progresses towards the centre of leaf blade. In the affected portions, the vein and veinlets turn brown and finally black.

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Test: Plant Breeding (Old NCERT) - Question 3

Black rust of wheat is caused by

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 3

Black rust of wheat is caused by Puccinia graminis tritici, a fungus which belongs to basidiomycota. It is an internal obligate parasite. The uredial pustules occur on stem, leaf sheath and leaves. The pustules of black rust are reddish brown in colour and elongated in shape. The rust spreads and by the time crop matures, dark, black, elongated tellal pusules are formed.

Test: Plant Breeding (Old NCERT) - Question 4

First artificial hybrid was obtained by crossing sweet william and carnation, in 1717 by

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 4

Thomas fairchild was the first English nurseryman to experiment with hybridization of plants. He was the author of "The City Gardener" (1728). He made history in 1717 by taking pollen from a carnation and inserting it into a sweet william in his nursery, thereby producing a new variety that was known as "Fairchilds's Mule". 

Test: Plant Breeding (Old NCERT) - Question 5

Jaya and Ratna are these semi-dwarf varieties of

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 5

Jaya and Ratna are semi-dwarf varieties of rice which are developed in India.

Test: Plant Breeding (Old NCERT) - Question 6

Shakti Rattan and Protina (varieties of maize) are rich in

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 6

Three varieties of maize namely Shakti, Rattan and Protina have been developed, evaluated and released for cultivation based on being rich in amino acid lysine. Generally, cereal and millet proteins are deficient in lysine and tryptophan amino acids which are called essential amino acids.

Test: Plant Breeding (Old NCERT) - Question 7

Which of the following are the species that are crossed to give sugarcane varieties with high sugar, high yield, thick stems and ability to grow in the sugarcane belt of North India?

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 7

Saccharum barberiwas originally grown in North India but has poor sugar content and yield. However, Saccharum officinarum had higher sugar content and thicker stems but did not grow well in North India. These two species were crossed to have sugarcane varieties combining the desirable qualities of high sugar, high yield, thick stems and ability to grow in the sugarcane belt of North India.

Test: Plant Breeding (Old NCERT) - Question 8

A wheat variety, Atlas 66, which has been used as a donor for improving cultivated wheat is rich in

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 8

High protein genes of Atlas 66 have been successfully incorporated into commercial variety Lancota to make it rich in proteins.

Test: Plant Breeding (Old NCERT) - Question 9

Gerplasm collection is the collection of

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 9

Germplasm is the sum total of all the alleles of the genes present in a crop and its related species The germplasm of any crop species consists of the following types of materials: cultivated improved varieties, improved varieties that are no more in cultivation, old local or 'desi' varieties, pure lines produced by plant breeders, and wild species related to the crop species.

Test: Plant Breeding (Old NCERT) - Question 10

Which of the following statements is not correct regarding plant breeding?

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 10

Germplasm collection is the first important step in breeding a new genetic variety of crop.

Test: Plant Breeding (Old NCERT) - Question 11

Which of the following diseases is caused by virus

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 11

Tobacco mosaic is caused by Tobacco Mosaic Virus. The infection causes characteristic pattern, such as "mosaic" - like mottling and discolouration on the leaves. Turnip Mosaic Virus causes turnip mosaic. Chlorotic lesions, mosaic and mottling are the common symptoms of this disease.

Test: Plant Breeding (Old NCERT) - Question 12

Hairy leaves of many plants are associated with

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 12

Insect resistance in host crop plants is due to morphological, biochemical or physiological characters. Hairy leaves of many plants are associated with resistance to insect pestes. For example, resistance to jassids in cotton and cereal leaf beetle in wheat.

Test: Plant Breeding (Old NCERT) - Question 13

Maize generates resistance against stem borers by having 

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 13

High aspartic acid, low nitrogen and sugar content in maize leads to resistance against maize stem borers.

Test: Plant Breeding (Old NCERT) - Question 14

Which of the following statements is correct regarding nectar-less cotton varieties?

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 14

Smooth leaved nectar-less cotton varieties do not attract bollworms.

Test: Plant Breeding (Old NCERT) - Question 15

Match Column-I (crop) with Column-II (corresponding insect pests resistant variety) and select the correct option from the codes given below.

Test: Plant Breeding (Old NCERT) - Question 16

Which of the following is an example of mutation breeding?

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 16

The process of mutation breeding involves inducing mutations artifically through use of chemicals or radiations (like gamma radiations)and selecting plants that have the desirable character as a source in breeding. In mung bean, resistance to yellow mosaic virus and powdery mildew were induced by mutations.

Test: Plant Breeding (Old NCERT) - Question 17

Yellow mosaic virus resistant variety "Parbhani Kranti" belongs to 

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 17

Resistance to yellow mosaic virus in bhindi (Abelmoschus esculentus) was transferred from a wild species (Abelmoschus manihotland) and resulted in new variety of A. esculentus called 'Parbhani kranti'.

Test: Plant Breeding (Old NCERT) - Question 18

Biofortification refers to the development of crop plants which are

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 18

Breeding of crops with higher levels of vitamins and minerals or higher and healthier fats is called biofortification. Breeding for improved nutritional quality is undertaken with objectives of improving protein, oil and vitamin content and quality, along with micro nutrient and mineral content.

Test: Plant Breeding (Old NCERT) - Question 19

Consider the following three statements and select the correct option starting with which ones are true (T) and which ones are false (F).
(i) Cryopreservation is one of the best methods of germplasm storage.
(ii) Hilsa, sardines and pamphlets are some freshwater fishes.
(iii) Controlled breeding experiments are carried out using artificial insemination.

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 19

Hilsa, sardines and pomphrets are marine fishes. Cryopreservation is storing substances at very low temperature (-196ºC) in liquid nitrogen.

Test: Plant Breeding (Old NCERT) - Question 20

Which of the following is incorrectly paired?

Detailed Solution for Test: Plant Breeding (Old NCERT) - Question 20

Pusa Komal is a hybrid variety of cowpea. This variety is resistant to bacterial blight disease Pusa Komal has been developed by hybridization of P-85-2 and P-426 cowpea strains It is widely adapted, flower early, bears good quality pods and gives higher yield.

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