Question

You perform a two-factor cross for two genes that are located on different chromosomes. You expect the recombination frequency between these two genes to be

a) 25%

b) 50%

c) 100%

d) 0%

Answer 1

In two-factor cross involving genes on different chromosomes, the expected recombination frequency is 50%, as genes on different chromosomes assort independently yielding equal chances for parental and nonparental genotypes in the offspring. Therefore , the correct answer options is b)

Step-by-step explanation:

When performing a two-factor cross for two genes that are located on different chromosomes, one would expect the recombination frequency between these two genes to be 50%.

This is because genes on different chromosomes will follow independent assortment during meiosis, predicting that 50% of the offspring will inherit recombinant genotypes and 50% will inherit the parental genotypes.

This scenario corresponds with a recombination frequency of 0.5, indicating that the offspring have an equal chance of being either the parental type or a nonparental type.