Assignment task:
You took a summer research position at evil Dr. D's fly genetics lab, and in his evilness, he handed you vials upon vials of unlabeled flies. These are the offspring of a particularly prolific pair of flies, and Dr. D has accidentally left them on their own for a year. It's been so long, he can't remember the parent flies' genotypes. He needs you to figure it out, based on their offspring. After counting each one, you are able to report back that you have:
95 flies with miniature wings and green eyes
319 flies with miniature wings and normal red eyes
286 flies with normal wings and green eyes
940 flies with normal wings and red eyes
a. What are the genotypes and phenotypes of the parent flies? Use M and m for the wing size trait, and G and g for the eye color trait.
b. Based on these parent genotypes, draw a Punnett's Square, clearly labeling the gametes and the genotypes of the offspring. Also label which offspring in the resulting Square match which phenotype listed above.