Strategies for Enhancement in Food Production

India's wheat yield revolution in the 1960s was possible primarily due to :-

1. Hybrid seeds
2. Quantitative trait mutations
3. Increased chlorophyll content
4. Mutations resulting in plant height reduction

Cellular totipotency is demonstrated by :

1. All eukaryotic cells
2. Only gymnosperm cells
3. Only bacterial cells
4. All plant cells

What is the reason of formation of embryoid from pollen grain in tissue culture medium ?

1. Double fertilization
2. Test tube culture
3. Cellular totipotency
4. Organogenesis

Which of the following crops have been brought to India from New world ?

1. Mango, tea
2. Coffee
3. Tea, rubber, mango
4. Cashewnut, potato, rubber

Which statement is correct about centre of origin of plant ?

1. Climatic condition more favourable
2. More diversity in improved variety
3. None
4. Frequency of dominant gene is more

Before the European invasion, which vegetables were absent in India?

1. Simla mirch and Brinjal
2. Bitter gourd
3. Maize and chichinda
4. Potato and Tomato

Triticale is obtained by crossing wheat with

1. Barley
2. Rye
3. Oat
4. Maize

Which statement is correct?

1. Workers are the smallest of the three castes
2. Wax is waste material of honey bee
3. Drone of honey bee is diploid
4. A. indica is largest wild honey bee