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We first crossed purple eye with wild type and found that F1 was all wild and f2 was three to one (wild to purple). That meant that the f1 cross acted in the way we predicted it to.

We then crossed a female singed and a male wild.

F1: female-100% wild

male-100% singed

F2: female- 50% wild, 50% singed

male- 50% wild, 50% singed

We think that singed is an X-chromosome linked trait, the F1 males having received their X-chromosome from the singed female (P). Perhaps it is an x-linked recessive trait?

We then crossed wild type and curly wing type. We found a 50/50 ratio between wild and curly in both genders.

We then crossed curly type and curly type (from F1) and came up with a weird answer. The ratio was 2:1, curly to wild, meaning that curly was dominant over wild type.

We started a new cross, curly and curly, and came up with the same ratio of 2:1, curly to wild. This suggested that curly is a heterozygous trait, homozygous curly being lethal.