set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Two microbes found to be very useful in genetic engineering are

a) Crown gall bacterium and Caenorhabditis elegans

b) Vibrio cholerae and a tailed bacteriophage

c) Diplococcus sp. and Pseudomonas sp.

d) Escherichia coli and Agrobacterium tumefaciens

Question : 2

Three crops that contribute maximum to global food grain production are

a) Wheat, maize and sorghum

b) Wheat, rice and maize

c) Wheat, rice and barley

d) Rice, maize and sorghum

Question : 3

Organic farming is the technique of raising crops through use of

a) Biofertilisers

b) Manures

c) Resistant varieties

d) All of these

Question : 4

IPM is

a) Integrated Pest Management Programme.

b) International Pest Management Programme.

c) International Pesticide Management Programme.

d) Internal Pest Management Programme.

Question : 5

What are the advantage of gobar gas over conventional utilization?

a) Reduces the chances of spreading of pathogens

b) More efficient source of energy

c) Used as good fertilizer

d) All of the above

Question : 6

Jaya and Ratna developed for green revolution in India are the varieties of

a) wheat

b) maize

c) rice

d) bajra