Question

Two fruit flies produce the following generation: 33 flies with recessive vestigial wings (ww) and 87 flies with normal wings (WW or Ww). What can you conclude about the parents of this generation?

Answer 1

The ratio of flies with recessive vestigial wings to normal wings is about 1:3, so the conclusion about the parents is that they both have normal wings, but are both Ww.