Strategies for Enhancement in Food Production · Question 4

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below:

1. (A) is not correct but (R) is correct
2. Both (A) and (R) are correct and (R) is the correct explanation of (A)
3. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
4. (A) is correct but (R) is not correct

Select the incorrect statement with respect to inbreeding of animals.

1. It exposes harmful recessive genes that are eliminated by selection.
2. It is used for evolving pure lines in cattle.
3. It helps in accumulation of superior genes and elimination of less desirable genes.
4. It decreases homozygosity.

Mutations in plant cells can be induced by :

1. Zeatin
2. Kinetin
3. Infrared rays
4. Gamma rays

Match List-I with List-II. Choose the correct answer from the options given below.

1. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
2. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
3. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
4. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

Which of the following is not an objective of Biofortification of crops?

1. Improve micronutrient and mineral content
2. Improve protein content
3. Improve resistance to diseases
4. Improve vitamin content

Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET)?

1. Fertilized eggs are transferred to surrogate mothers at 8-32 cell stage
2. Cow is administered hormone having LH like activity for super ovulation
3. Cow yields about 6-8 eggs at a time
4. Cow is fertilized by artificial insemination

By which method was a new breed ‘Hisardale’ of sheep formed by using Bikaneri ewes and Merino rams?

1. Out crossing
2. Mutational breeding
3. Inbreeding
4. Cross breeding

Select the incorrect statement.

1. Inbreeding selects harmful recessive genes that reduce fertility and productivity.
2. Inbreeding helps in accumulation of superior genes and elimination of undesirable genes.
3. Inbreeding increases homozygosity.
4. Inbreeding is essential to evolve purelines in any animal.

Homozygous purelines in cattle can be obtained by :

1. mating of related individuals of same breed
2. mating of individuals of different species
3. mating of individuals of different breed
4. mating of unrelated individuals of same breed

Interspecific hybridisation is the mating of

1. animals within same breed without having common ancestors
2. superior males and females of different breeds
3. more closely related individuals within same breed for 4-6 generations
4. two different related species