You are performing a mutagenesis screen to isolate mutations in Drosophila.While looking through a batch of mutagenized flies,you find a fly in which its antenna had been transformed to a pair of extra legs.You surmise that this fly must have a mutation in regulatory protein that contains which type of DNA-binding motif?
A)helix-turn-helix
B)homeodomain
C)zinc finger
D)leucine zipper

Question

Quizplus · Accepted Answer

The transformation of antennae to legs in Drosophila is characteristic of a mutation in a homeotic gene, which often contains a homeodomain DNA-binding motif.

You Are Performing a Mutagenesis Screen to Isolate Mutations in Drosophila.While