Suppose that in studies of genes on the same chromosome you find the following recombination frequencies: Why is the total distance between a and b less than the distance between a and c plus the distance between c and b?
a. a and b are not linked
b. the distances were calculated incorrectly
c. b is in between genes a and c
d. double crossovers between a and b decrease recombinants
e. all three genes encode the same trait
ANSWER: d
Biology & Microbiology
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