Domesticated Varieties

Q. Conventional plant breeding involves

1. Artificial selection
2. Both A and B
3. Hybridisation
4. Mutation breeding

Q.

New varieties of plants are produced by

1. Mutation and selection

2. Introduction and mutation

3. Selection and hybridisation

4. Introduction and selection

Q. Regarding assertion and reason, which is the correct option
Assertion[A]: Many present-day crops are the result of domestication in ancient times.
Reason[R]: Cabbage, broccoli, kale, kohlrabi, brussel sprouts and cauliflower have all originated from the same ancestor.

1. Both A and R are true and R explains A
2. Both A and R are true but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q. How is a somatic hybrid different from a hybrid?

Q. Identify the set of correct statements related to aims and objectives of plant breeding.

1. Increased crop yield and improved quality
2. Increased tolerance to environmental stress
3. Increased resistance to pathogens
4. Increased tolerance to insect pests
5. All of the above

Q. Which of the following is a popular indigenous breed of fowl?

1. Aseel
2. Murrah
3. Surti
4. Catla

Q. More than 70 per cent of livestock population is in

1. India and China.
2. India.
3. China.
4. Denmark.

Q. Regarding assertion and reason, which is the correct option
Assertion[A]: Many present-day crops are the result of domestication in ancient times.
Reason[R]: Cabbage, broccoli, kale, kohlrabi, brussel sprouts and cauliflower have all originated from the same ancestor.

1. Both A and R are true and R explains A
2. Both A and R are true but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q. Conventional plant breeding involves

1. Hybridisation
2. Artificial selection
3. Both A and B
4. Mutation breeding

Q.

what is plant breeding