A set of genes will be in a complete linkage when the progeny phenotypes for parental (P) and recombinant (R) types are

P = 0%, R = 100%

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P = 50%, R = 50%

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P < 50%, R > 50%

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P = 100%, R = 0%

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Solution

The correct option is D P = 100%, R = 0%
If there is complete linkage, there will be no recombination events occurring between the genes. The two alleles will not be separated. Hence, only parental combinations of alleles are observed in progeny. Hence, when the set of genes will be in a complete linkage, there will be 100% parental type progeny and 0% recombinanat type progeny phenotypically.
Thus, the correct answer is option D.

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