Using the class data provided for the F2 progeny, propose a genetic hypothesis that accounts for the phenotypes and their relative proportions (ratios) observed among the F2. Ensure you have recorded the data before you leave as class data will not be uploaded on Moodle.

Fill in the Punnett square below with both the genotypes and phenotypes of the F2 generation that you would expect through normal Mendelian inheritance:

Are there any sex differences in F1 offspring? (Hint: look to see if there are different phenotypes present between males and female flies). Note: to fully identify or discount sex differences you usually need to undertake a reciprocal cross. For this cross you can assume that if you do not see sex differences, you would also not see them in the reciprocal cross (i.e. vestigial females x glass-eye males).

When analysing a pedigree, which of the following features would fit with an X-linked Recessive mode of inheritance?

(Select all that apply)