The purposeful manipulation of plant species in order to create desired plant types that are better suited for cultivation, give better yields and are disease resistant is called:

1. Breeding

2. Genetic farming

3. Phytoremediation

4. r DNA technology

Today, all our major food crops are derived from:

1. Wild varieties

2. Domesticated varieties

3. Genetically modified varieties

4. Plant tissue culture

Consider the following two statements:

I. An effective germplasm collection is the prerequisite of any successful plant breeding program.

II. Genetic variability is the root of any breeding program.

1. Both I and II are true and II explains I

2. Both I and II are true and II dose not explains I

3. I is true but II is false

4. I is false but II is true

Arrange the following steps of a plant breeding program in a correct chronological manner:

I. Selection and testing of superior recombinants

II. Collection of variability

III. Cross-hybridization among the selected parents

IV. Evaluation and selection of parents

V. Testing, release and commercialization of new cultivars

1. II, IV, I, III, V

2. IV, I, II, III, V

3. II. IV, III, I, V

4. IV, III, II, I, V

In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called

1. selection of superior recombinations

2. cross-hybridisation among the selected parents

3. evaluation and selection of parents

4. germplasm collection

Which of the following timeline is correct for conventional plant breeding?

1. Practiced for thousands of years, since the beginning of human civilization

2. The evidence of plant breeding dates back 9000-11000 years ago

3. The present-day crops are the result of domestication in ancient times

4. All of these

The list of traits that breeders try to incorporate into crop plants should lead to

1. Increased tolerance to environmental stresses

2. Resistance to pathogens

3. Tolerance to insect pests

4. Increased crop yield and improved quality

What is the root of any breeding program?

1. Genetic variability

2. Gametic sustainability

3. Germplasm durability

4. Meiotic Anaphase