Step 1: Hypothesize
Fruit flies can have many eye colors that are different from the normal (or "wildtype") red color of most flies. One of those eye colors is white, which is an eye absent of pigment. Scientists are not 100% sure how this trait is inherited, although several experiments have suggested that it is sex-linked recessive.
|White Eyed Female||Wild-Type (Red Eyed) Male|
In order to test the inheritance of the white-eyed trait for ourselves, we will be crossing white-eyed females with wildtype males. In order to best come up with your hypothesis, answer the questions below. Please note that although here a letter has been used to represent the wildtype genotype, in the research community wildtype flies are represented by "+" symbols.