Question 58 Assume that K and M are two unlinked genes that affect hearing. The

Question

Question 58 Assume that K and M are two unlinked genes that affect hearing. The O dominant K allele is necessary for hearing, and the dominant M allele Solution causes deafness regardless of the other genes present. Given this, what fraction of the offspring of parents with the genotypes KkMm and Kkmm Foundational Concept: 1 Biomolecules have unique properties that determine how they contribute to the structure and function of cells, and how they participate in the processes necessary to maintain life. Content Category: 1C Transmission of heritable information from generation to generation and the processes that increase genetic diversity Scientific Inquiry and Reasoning Skill: 2 Scientific Reasoning and Problem Solving Discipline: Biology o A. 1/4 O B. 3/8 ? ?. 112 O D. 5/8

Explanation / Answer

KkMm ??Kkmm

Progeny:

KKMm KKmm KkMm Kkmm

KKMm KKmm KkMm Kkmm

KkMm Kkmm kkMm kkmm

KkMm Kkmm kkMm kkmm

The fraction of progeny most likely to be deaf is 10/16 = 5/8. That is the answer is D.

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