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

• A. Sutton and Boveri
• B. Alfred Sturtevant
• C. Henking
• D. Thomas Hunt Morgan

Answer 1

The Correct Option is B

The concept of measuring the frequency of recombination between gene pairs on the same chromosome to map their position on a chromosome was first utilized by Alfred Sturtevant. As a student of Thomas Hunt Morgan, Sturtevant recognized that the likelihood of recombination between two gene loci is proportional to the distance separating them. This insight allowed him to create the first genetic map, using recombination frequency as a measure of distance—a pivotal advancement in the field of genetics.

Thus, the correct answer is: Alfred Sturtevant.

Answer 2

Alfred Sturtevant was the first to propose and use the frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes. This concept laid the foundation for genetic mapping, and his work was performed in collaboration with Thomas Hunt Morgan's laboratory.
Therefore, The correct option is (B): Alfred Sturtevant