Question

Selective breeding of crop plants often aims to increase the yield of the crop.
a) Describe and explain the reasons for three other aims of selective breeding programs in crop plants.
b) Describe 2 advantages of micro propagation over the more traditional technique of taking cuttings.
c) Explain why plants produced by micro propagation will be genetically identical to each other and to the parent plant.

Answer 1

Answer:

a) The purpose of selective breeding is to develop livestock whose desirable traits have strong heritable components and can therefore be propagated.Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.

b) 2 advantages of micro propagation over the more traditional technique of taking cuttings :-

• Micropropagation facilitates the growth, storage, and maintenance of a large number of plants in small spaces which makes it a cost-effective process.
• Micropropagation is used for germ plasm storage and the protection of endangered species.

c) Plants produced by micropropagation are called somaclones.

• " Plants produced by micro-propagation will be genetically identical to original plants from which they were grown. Plants produced by micro-propagation are called somaclones.

Explanation:

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Above attachment is some Explanation of no.C) .