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What is meant by ‘heredity’? What are the units of heredity? (b) State Mendel’s first law of inheritance.

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(a) What is meant by ‘heredity’? What are the units of heredity?

(b) State Mendel’s first law of inheritance.

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(a) The transmission of characters from parents to the offspring’s is called heredity. The units of heredity are genes.

(b) According to Mendel’s first law of inheritance:

The characteristics (or traits) of an organism are determined by internal ‘factors’ which occur in pairs. Only one of a pair of such factors can be present in a single gamete.

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