Which one of the following information is essential to determine the genetic map distance between two genes located on the same chromosome ?

Options

A. Length of the particular chromosome
B. Number of genes present in the particular chromosome
C. Number of nucleotides in the particular chromosome
D. Perecentage of crossing over or recombinant frequency between the two genes

Answer

D

Explanation

Alfred H Sturtevant. One of mogen's student, used the frequency of recombination or perecentage of crossing over between gene pair on the same chromosome as a measure of the distance between genes and mapped their position on the chromosome. This technique is based on the assumption that the father apart two genes are on a chromosome, the higher the highter the probahility that a choss over will occur between them.