If two genes show a low,but measurable,frequency of crossing over,this means that
A) the genes are far apart.
B) the two genes are close together.
C) the genes are present on different chromosomes..
D) the genes have mutated.
E) there has been a mistake made by the researchers.

Question

Quizplus · Accepted Answer

When two genes show a low but measurable frequency of crossing over, it indicates that the genes are close together on the same chromosome. Crossing over frequency is used as a measure of the physical distance between genes; the closer the genes are, the less likely they are to be separated by a crossing over event during meiosis.

If Two Genes Show a Low,but Measurable,frequency of Crossing Over,this