(A) In a small community,if individuals marry only within the community (endogamy),the gene pool remains restricted. This increases the probability of

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They marry only within the community

(A) In a small community,if individuals marry only within the community (endogamy),the gene pool remains restricted. This increases the probability of homozygous recessive conditions,leading to the expression of harmful hereditary diseases. These diseases can reduce the reproductive fitness and survival rate of individuals,thereby acting as a natural check on the population growth of that specific community.

Class 12 Biology Principles of Inheritance and Variation Pedigree Analysis and Mendelian disorders

Medium

Hereditary diseases constitute an important factor in checking the growth of population of a small community if:

A
They marry only within the community
B
They encourage marriage outside the community
C
They adopt birth control measures
D
They do not adopt birth control measures

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Class 12

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Chapter

Principles of Inheritance and Variation

Subtopic

Pedigree Analysis and Mendelian disorders

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Hereditary diseases constitute an important factor in checking the growth of population of a small community if:

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Quantitative defect of hemoglobin $- P$
Qualitative defect of hemoglobin $- Q$
Select the correct option for $P$ and $Q$.
$\quad \quad P\quad \quad \quad Q$