When analyzing Drosophila offspring of test crosses to determine gene linkage, what value for recombination frequency would tell you that two genes are probably not linked?
A) 0.00
B) 0.25
C) 0.50
D) 1.00
E) 1.50

Question

Quizplus · Accepted Answer

A recombination frequency of 0.50 (or 50%) suggests that two genes assort independently and are therefore probably not linked. This is because a 50% recombination frequency is what you would expect if genes are on different chromosomes or far apart on the same chromosome, following Mendel's law of independent assortment.

When Analyzing Drosophila Offspring of Test Crosses to Determine Gene