Question

Alfred Sturtevant defined one map unit on a chromosome as the equivalent of a _______ recombination frequency.

• A. 0%
• B. 1%
• C. 10%
• D. 100%

Answer 1

The correct option is B 1%

The distance between two gene loci on a chromosome is expressed in terms of a unit known as Centimorgan (cM) or map unit (m.u.).
Recombination frequency is the frequency of crossing over taking place between non-sister chromatids of homologous chromosomes.
1 cM or 1 map unit (m.u.) is equal to 1% recombination frequency.