While studying fruit flies, a scientist notices that some of the flies have body parts in place of normal body parts. For example, the scientist noticed that some flies had feet in place of mouth parts, extra pairs of wings, or legs growing out of their heads in place of antennae. The scientist went on to investigate the cause of the mutations. Based on the information presented, what conclusion was made by the scientist?


A The scientist found mutations in the fruit flies' p53 gene.

B The scientist found mutations in the fruit flies' HOX genes.

C The scientist found that the fruit flies had mutations in their mitochondrial DNA.

D The scientist found that the fruit flies had mutations in the genes that code for the production of chaperone proteins.