I've got some homework that's due on Thursday, and my biology professor didn't go over how to setup a punnett square based on both sex and epistatic genes. We just learned the basics, and he's giving us a much more complex homework assignment than I believe anyone in our class might know....
Anyone willing to give some help? I don't want the answers I just want to learn how to set this shit up.
Now, the problem is I've never really fucked around with something that involves an epistatic gene attached to an x-chromosome. So would that mean the male was omm and the female was OoMm? How would I include the X, XY chromosomes from the female in the punnett?
WHAT AM I DOING HERE?!@
Anyone willing to give some help? I don't want the answers I just want to learn how to set this shit up.
In cats, two of many genes that affect the coat color are the orange locus and the tabby locus. The orange locus is x-linked with 2 alleles, O, which produces orange pigment. The tabby locus is responsible for one basic pattern of stripes: The dominant allele is M and produces the mackeral stripe pattern, while the recessive m allele produces blotched or whorled stripes. The dominant allele O is epistatic to the tabby locus, changing the color base of the stripes from black to orange (i.e. an orange colored tabby like "morris"
in a downtown alley, a black, whorled-striped tabby tomcat makes with a female heterozygous at both loci.
a. Describe and explain the mothers phenotype. (hint, she is female)
b. What are the gametes produced by the male and the female in the cross?
c. Neatly set up the mating using a punnett square. Define and use clear consistent symbols.
Now, the problem is I've never really fucked around with something that involves an epistatic gene attached to an x-chromosome. So would that mean the male was omm and the female was OoMm? How would I include the X, XY chromosomes from the female in the punnett?
WHAT AM I DOING HERE?!@