Genes A, B, C, D, and E Are Linked on the Same

question 206

Multiple Choice

Genes A, B, C, D, and E are linked on the same chromosome.Locus A and locus B recombine with 10 percent frequency.Locus A and locus C recombine with 23 percent frequency.Locus B and locus D recombine with 4 percent frequency.Locus D and Locus E do not recombine.Based on this information, which of the pairs of loci are most likely to be closest together?

• A) A and B
• B) A and C
• C) B and D
• D) D and E
• E) They should all be equally distant.

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