Question

The two genes located on separate chromosome produce .............. recombinants.

• A. 50%
• B. 25%
• C. 75%
• D. All of the above

Answer 1

The correct option is A

50%

Genes that are located on different chromosomes show a recombination frequency of 50%. These genes show independent assortment. If the genes are present on the same chromosome, they undergo more than one crossovers in every meiosis. The genes present on same chromosomes undergo multiple cross over per meiosis owing to the demonstrable distance between the two. The tightly linked genes on a chromosome show the recombination frequency of nearly 0%.

Thus, the correct answer is option A.