[Campbell Biology P.351] In a testcross involving two genes, a recombination frequency of le... | Practice Question

In a testcross involving two genes, a recombination frequency of less than 50% indicates what?

  • A: The two genes are on different chromosomes.
  • B: The two genes are linked.
  • C: One of the genes is dominant and the other is recessive.
  • D: The experiment was performed incorrectly.

Explanation

The text explains that a recombination frequency greater than 50% for parental types which means less than 50% for recombinant types indicates that the genes are linked. The 50% frequency is the benchmark for independent assortment.