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

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.

Select the incorrect statement:

In order to obtain virus-free plants through tissue culture the best method is :

1. protoplast culture

2. embryo rescue

3. anther culture

4. meristem culture

In cloning of cattle, a fertilized egg is taken out of the mother's womb and:

1. the egg is divided into 4 pairs of cells which are implanted into the womb of other cows

2. in the eight cell stage, cells are separated and cultured until small embryos are formed which are implanted into the womb of other cows

3. in the eight cell stage, the individual cells are separated under electrical field for further development in culture media

4. from this up to eight identical twins can be produced

Somaclones are obtained by

1. tissue culture

2. plant breeding

3. irradiation

4. genetic engineering

Breeding of crops with high levels of minerals, vitamins and proteins is called

1. somatic hybridization

2. biofortification

3. biomagnification

4. micropropagation

1.  germplasm

2.  gene library

3.  genome

4.  herbarium