Heredity — Test

Question 1

Which of Thomas Hunt Morgan's hypotheses was valid based on these results?

Revolt · Accepted Answer

Female Drosophila with white eyes are homozygous recessive.

Question 2

What do these characteristics all have in common?

Revolt · Accepted Answer

They can all be easily observed.

Question 3

In the pedigree that is shown, which represents Irene's allele combination?

Revolt · Accepted Answer

cap x to the cap h th power cap x to the cap h th power

Question 4

Based on the Punnett square, what is the phenotype of the offspring?

Revolt · Accepted Answer

tall

Question 5

What is the best evidence to prove that Irene was heterozygous for hemophilia?

Revolt · Accepted Answer

Two of her sons have hemophilia and one does not.

Heredity — Test Answers