|
Title: how many of the male and female offspring would have red eyes and white eyes. Post by: sarafina on Mar 24, 2014 Experimental prediction: Comparing autosomal and sex-linked inheritance
You now know that inheritance of eye color in fruit flies is sex-linked: The gene encoding eye color is located on the X chromosome, and there is no corresponding gene on the Y chromosome. How would the inheritance pattern differ if the gene for eye color were instead located on an autosome (a non-sex chromosome)? Recall that for autosomes, both chromosomes of a homologous pair carry the same genes in the same locations. Suppose that a geneticist crossed a large number of white-eyed females with red-eyed males. Consider two separate cases: Case 1: Eye color exhibits sex-linked inheritance. Case 2: Eye color exhibits autosomal (non-sex-linked) inheritance. (Note: In this case, assume that the red-eyed males are homozygous.) For each case, predict how many of the male and female offspring would have red eyes and white eyes. Drag the correct numbers on the left to complete the sentences on the right. Numbers can be used once, more than once, or not at all. Title: Re: how many of the male and female offspring would have red eyes and white eyes. Post by: attacktitan on Oct 23, 2014 white are recessive and red eyes are dominant.
|