A Scientist Wants to Determine Whether a Mutant Phenotype Is

Multiple Choice

A scientist wants to determine whether a mutant phenotype is due to the loss of gene C or gene D, which are both deleted in a mutant fly with abnormal eyes.Mutant flies with transgenic gene C have wild-type eyes, whereas mutant flies with transgenic gene D have abnormal eyes.What can be concluded from these results?

A) Either gene C or gene D is required for normal eye development.
B) Both gene C and gene D are required for normal eye development.
C) Gene C is required for normal eye development.
D) Gene D is required for normal eye development.