Frequency of recombination between gene pairs on some chromosome as a measure of the distance between genes to map their position on chromosome, was used for the first time by
Answer: (C) Alfred Sturtevant. Answer: (C) Alfred Sturtevant Solution: Alfred Sturtevant, a student of T.H.
- A.Thomas Hunt Morgan
- B.Sutton and Boveri
- C.Alfred Sturtevant✓
- D.Henking
Correct Answer
(C) Alfred Sturtevant
Solution & Explanation
Answer: (C) Alfred Sturtevant Solution: Alfred Sturtevant, a student of T.H. Morgan, was the first to use the frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes to map their positions. Morgan coined linkage/recombination but the mapping technique is credited to Sturtevant; Sutton and Boveri proposed the chromosomal theory, and Henking discovered the X body. NCERT Reference: NCERT Class XII, Ch 4, p.67, lines 47-50: "His student Alfred Sturtevant used the frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes and 'mapped' their position on the chromosome."