Question

One map unit equals what percent recombination?
a)10
b)1
c)1000
d)100
e)50

Answer 1

A map unit is equivalent to a 1% recombination frequency, corresponding to the distance between genes on a genetic map.

Step-by-step explanation:

One map unit (also known as a centimorgan, cM) equals 1% recombination. When geneticists map the locations of genes on chromosomes, they use the term 'map unit' to represent the distance between gene alleles based on their probability of recombination during meiosis. If there is a recombination frequency of 0.01 (or 1%) between two genes, then they are considered to be 1 map unit apart on the genetic map. The frequency is measured by observing the number of recombinant offspring resulting from genetic crossovers during meiosis relative to the total number of offspring.