Question

Frequency of recombination between gene pairs on same chromosome as a measure of the distance between genes to map their position on chromosome, was used for the first time by ______.

Options

• Sutton and Boveri

• Alfred Sturtevant

• Henking

• Thomas Hunt Morgan

Answer 1

Frequency of recombination between gene pairs on same chromosome as a measure of the distance between genes to map their position on chromosome, was used for the first time by Alfred Sturtevant.

Explanation:

Alfred Sturtevant was an American geneticist and a student of Thomas Hunt Morgan. He worked on the genetics of Drosophila melanogaster (fruit fly) and used recombination frequency to measure the genetic distance between genes located on the same chromosome. He found that genes located far apart on the chromosome were more likely to undergo recombination during meiosis than those located close together. Such use of recombination frequency helped in creating genetic maps of chromosomes, providing useful insights into genetic inheritance.