Solutions For An Introduction to Genetic Analysis Chapter 6 Problem 14P

II. In the presence of wildtype bw⁺ allele and mutant st allele, the scarlet pigment drosopterin gets synthesized causing scarlet eyes.

III. In the presence of the wild-type st⁺ allele and mutant bw allele, the brown pigment xanthommatin gets synthesized resulting in brown eyes.

IV.

A homozygote for both the recessive genes produces no pigment and yield white eyes.