How would one explain a testcross involving F₁ dihybrid flies in which more parental-type offspring than recombinant-type offspring are produced?
A)The two genes are linked.
B)The two genes are linked but on different chromosomes.
C)Recombination did not occur in the cell during meiosis.
D)The testcross was improperly performed.
E)Both of the characters are controlled by more than one gene.

Question

Quizplus · Accepted Answer

If the two genes are linked, they are located on the same chromosome and will tend to be inherited together. This will result in more parental-type offspring than recombinant-type offspring in the testcross.

How Would One Explain a Testcross Involving F₁ Dihybrid Flies