Select the incorrect statement regarding inbreeding:

1.	Inbreeding helps in elimination of deleterious alleles from the population
2.	Inbreeding is necessary to evolve a pure-line in any animal
3.	Continued inbreeding reduces fertility and leads to inbreeding depression.
4.	Inbreeding depression cannot be overcome by out-crossing.

In mung bean, resistance to yellow mosaic virus, and powdery mildew was brought about by:

1. Mutation breeding

2. Biofortification

3. Tissue culture

4. Hybridization and selection

Which of the following disease is caused by viruses in plants?

1. Brown rust of wheat

2. Turnip mosaic

3. Red rot of sugarcane

4. Late blight of potato

Select the incorrect statement(s) (with respect to semi-dwarf varieties of wheat)

1. Developed by Norman E.Borlaug

2. Developed at International Centre for Wheat and Maize Improvement in Mexico

3. These varieties were derived from IR-8

4. Responsible for green revolution

Read the following statement and select the right choice
i. Semi-dwarf varieties, Jaya and Ratna were
developed in IRRI, Phillippines.
ii. Classical plant breeding involves crossing or
hybridization of pure lines.
iii. Saccharum barberi was originally grown in
South India.
iv. Genetic variability is the root of any breeding
programme.

1. Only i is correct.
2. ii and iv are correct.
3. i, ii and iii are correct.
4. ii, iii and iv are correct.

Which of the following is correct to check the inbreeding depression ?

1. Artificial hybridisation

2. Cross breeding

3. Selected animal should be mated with unrelated superior animals of the same breed 

4. Selected animal should be mated with unrelated superior animals of the different breed 

Find the correct match of the following crops with respect to diseases and insect/pest resistance

1. a(iv), b(iii), c(i), d(ii)

2. a(iv), b(iii), c(ii), d(i)

3. a(iii), b(iv), c(i), d(ii)

4. a(ii), b(iii), c(i), d(iv)

Select an incorrect match with respect to resistant varieties of common crops

(1) Pusa swarnim             - Cauliflower

(2) Pusa komal                - Cow-pea

(3) Himgiri                      - Wheat

(4) Pusa gaurav               - Brassica

Select the incorrect match with respect to variety

Find the correct match (column-I with column-II)

(1) a(ii), b(iv), c(i), d(iii) 

(2) a(ii), b(iv), c(iii), d(i)

(3) a(iv), b(ii), c(i), d(iii) 

(4) a(i), b(iii), c(ii), d(iv)