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In a population of 1000 individuals 360 ...

In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is

A

0.7

B

0.4

C

0.5

D

0.6

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The correct Answer is:
D
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[A]: If a population is of dominant genotype AA, then the frequency of dominant alleles in the gene pool will be relatively higher. [R]: The percentage of gametes bearing recessive (aa) allele will be correspondingly low

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Read the following statements amd select the correct option .A . increase in the melanised moths after industrialisation in Great Britain is proof of natural selection. B. When more individuals of a population acquire a mean character value ,it is called disrupation . C . Changes in allelic frequencey in a population will lead to Harry -Weingberg equilibrium. D. Genetic drift changes the existing gene allelic frequency in future generations.

In a random mating population of 1 lakh individuals-the frequency of the recessive allele is 0.4. how many individuals will have homozygous genotypes?

A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population

[A]: According to Hardy-Weinburg law both gene frequencies and genotype frequencies will remain constant from generation to generation in an infinitely large interbreeding population. [R]: Alleles segregating in a population tend to establish an equilibrium with reference to each other, thus maintain both frequencies constant.

A, B, D are three independently assorting genes with their recessive aleles a,b,d respectively. A cross was made between individuals of Aa bb DD genotype with aa bb dd. Find out the type of genotypes of the offspring produced.

A plant with four heterologous pairs of chromosomes having Aa,Bb,Cc,Dd is self fertilized , the resulting genotype with aa bb cc dd genes occur according to which one of the following frequencies?

TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
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