Question

Depending upon the distance between any two genes which is inversely proportional to the strength of linkage, cross overs will vary from
A. `50-100 %`
B. `0-50 %`
C. `75-100 %`
D. `100-150 %`

Answer 1

Correct Answer - B
The physical distance between two genes determines both the strength of the linkage and the frequency of the crossing over between two genes The strength of the linkage increases with the closeness of the two genes. On the other hand the frequency of crossing over increases with the increase in the physical distance between the two genes.