Question

Frequency of crossing over is directly proportional to

• A. Age
• B. Temperature
• C. Distance between genes
• D. All of the above

Answer 1

The correct option is C Distance between genes

Recombination or crossing over can occur between any two genes on a chromosome. It is a function of how close the genes are to each other on the chromosome. If two genes are far apart, crossover events will occur with equal frequency. Genes that are closer together or genes which are highly linked undergo no crossing over events and the two genes are inherited together in all the generations.

Thus, the correct answer is option C.