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Title: In a mating between a red-eyed male fruit fly and a red-eyed heterozygous female Post by: Shonterria on Oct 18, 2015 virtual lab journal and table for sex linked traits
Title: Re: In a mating between a red-eyed male fruit fly and a red-eyed heterozygous female Post by: duddy on Oct 18, 2015 All (100%) of the females will have red eyes.
50% of the males will have red eyes; 50% white eyes. It's a sex-linked trait. Fifty percent of the females are expected to be carriers. This was determined by performing a genetic cross using a Punnett square to determine the genotypes of the offspring. A red-eyed male (XRY) was crossed with a red-eyed female carrier (XRXr). The genotypes that resulted were: 1 XRXR:1 XRXr:1 XRY:1 XrY. One out of two, or 50 percent, of the females are carriers. |