Question

define heredity.explain the mechanism of hereditary changes

Answer 1

Answer:

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Answer 2

Answer:

Heredity can be defined as the process of transmission of the characters from the parents to the offspring through the mode of reproduction. Hereditary changes can occur due to the following changes:

Natural Selection- One allele is fixed for the population as it provides a survival advantage.

genetic drift:- sudden change in small population due to which new genetic variables are produced

mutations: sudden and inheritable changes in the genetic material that gives rise to a new allele

recombination: when the crossing over occurs during meosis. the sequence of alleles changeson the chromosomes

Explanation:

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