What is interspecific hybridization? Write one example of it.

2

(a)

What role is played by heterozygosity in the improvement of breeds?

2

(a)

Write the economic importance of honey bee.

2

(a)

How would an aquaculture and pisciculture be helpful in our life?

2

(a)

How micro-propagation is helpful in producing thousands of plant?

2

(a)