Question

Most fruit flies have a pair of antennae on their head. But, some flies appear tohave an extra pair of legs on their head instead! These flies have a mutation, orchange, in a gene that affects body development. This mutation makes the cellsin 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 normalantennae. In this group, the gene for the antenna type trait has two alleles. The allele formutated antennae (A) is dominant over the allele for normal antennae (a).A certain fruit fly from this group has mutated antennae.Based onthis fruit fly's phenotype for the antenna type trait, which of the following could beits genotype for the antenna type gene? Select all that apply.АаAAaaSubmit

Answer 1

Note that the mutated antennae allele (A) is dominant over the normal antennae allele (a). Now, if the fruit fly of this group has mutated antennae, this means that it has the A allele in its genotype and therefore its genotype would be all the possible combinations of the alleles with the A allele. Therefore, the correct answers are:

Aa

AA