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Q.

Given below are two statements.

Statement I : In a population, the sum total of all the frequencies of all the alleles of a gene is 1.

Statement II : In a population, the sum of the frequencies of all possible genotypes with respect to a particular gene is 1.

In light of the above statements, choose the correct answer from the options given below.

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a

Both statement I and statement II are correct.

b

Both statement I and statement II are incorrect.

c

Statement I is correct but statement II is incorrect.

d

Statement I is incorrect but statement II is correct.

answer is A.

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Detailed Solution

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Both statement I and statement II are correct.

Statement I: "In a population, the sum total of all the frequencies of all the alleles of a gene is 1." p+q=1

Explanation: This statement is true according to the principles of population genetics. The sum of the frequencies of all alleles at a particular gene locus within a population equals 1, as each individual carries two alleles for each gene (one from each parent), and these alleles represent all the possible variations of that gene within the population.

Statement II: "In a population, the sum of the frequencies of all possible genotypes for a particular gene is 1."p2+2pq+q2=1.

Explanation: This statement is also true. The sum of the frequencies of all possible genotypes at a particular gene locus within a population equals 1. Each genotype represents a combination of alleles, and all possible genotypes must be accounted for in the population, thus totaling 1.

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Given below are two statements.Statement I : In a population, the sum total of all the frequencies of all the alleles of a gene is 1.Statement II : In a population, the sum of the frequencies of all possible genotypes with respect to a particular gene is 1.In light of the above statements, choose the correct answer from the options given below.