Acquired traits are traits gained by an individual as a result of his interaction with the environment. These traits do not change the genetic make-up of an organism and hence are not carried down by heredity. Any random error in gene, that occurs while replication is known as________________________.

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Solution

Mutations result from errors in DNA replication. Hence the answer is mutation

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Question 9
Select the incorrect statement

(a) Frequency of certain genes in a population change over several generations resulting in evolution.
(b) Reduction in weight of the organism due to starvation is genetically controlled.
(c) Low weight parents can have heavyweight progeny.
(d) Traits which are not inherited over generations do not cause evolution.

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