Context: This passage describes the antenna type trait in fruit flies:
Most fruit flies have a pair of antennae on their head. But, some flies appear to have an extra pair of legs on their head instead! These flies have a mutation, or change, in a gene that affects body development. This mutation makes the cells in the fly's head form mutated antennae that are like legs.
In a group of fruit flies, some individuals have mutated antennae and others have normal antennae. In this group, the gene for the antenna type trait has two alleles. The allele for mutated antennae (A) is dominant over the allele for normal antennae (a).
This Punnett square shows a cross between two fruit flies.
What is the expected ratio of offspring with mutated antennae to offspring with normal antennae? Choose the most likely ratio.
A. 1:3
B. 0:4
C. 3:1
D. 2:2
E. 4:0
Determine the correct option from the provided choices and reply with its corresponding letter.
Answer: C