In a gene pool, along with beneficial mutations those mutations also exists which are damaging to an

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4.Principles of Inheritance and Variation

normal

In a gene pool, along with beneficial mutations those mutations also exists which are damaging to an individual. It has been found that these mutations are irreversible because

$I.$ they have survival value

$II.$ they are acquired

$III.$ they are recessive and carried by heterozygous individuals only

$IV.$ they show genetic drift

Choose the incorrect option for given statement

$I$ and $III$

$I$ and $II$

$II$ and $IV$

Only $III$

Harmful mutation does not get eliminated from gene pool because mostly harmful mutation are recessive and carried by heterozygous individual

Standard 12

Biology

normal

(AIPMT-2004)

normal

(AIPMT-1995)

normal

normal

normal