Physics NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 11 PCB MCQ (Single Correct)

In a population that is in Hardy Weinberg equilibrium, the frequency of a recessive allele for a certain hereditary trait is 0.20. What percentage of the individual in the next generation would be expected to show the dominant trait?

A
B

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D

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The correct answer is:
D

As the population is in Hardy Weinberg equilibrium, the frequencies of alleles will remain the same for the next generation also. According to the question, the frequency of recessive allele is . Frequency of dominant allele, . Hardy Weinberg law states that the sum of all genotype frequencies is represented as the binomial expansion of the square of the sum of and . This sum is equal to one. . Hence, the frequency of homozygous dominant genotypes in the total population or . And the frequency of heterozygous dominant genotype in total population or . The frequency of dominant individuals in next population 96%.

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