PART A) The color of tulips can be determined by the interactionof 2 loci. Tulips can be pigmented red (controlled by a dominantallele, R) or yellow (r). The second locus has a dominant whiteallele (W), which inhibits pigment resulting in white tulips and arecessive allele (w) which results in colored petals. Consider thecross of a true breeding yellow tulip with a true breeding whitetulip that is heterozygous recessive at the pigmented locus. Showwork where necessary. What are the parental genotypes? What are theresulting F1 genotypes? If you cross the F1 plants what is theprobability of getting a white tulip in the F2 generation?

PART B) A true-breeding pink-body unicorn with a red horn wascrossed with a true-breeding white-bodied, purple horned unicorn.Pink body and purple horns are dominant. What phenotypic ratio doyou expect for F1? For the F2 generation, you end up with thefollowing unicorn offspring: 180 pink-bodied and purple horned, 60pink-bodied and red horned, 50 white-bodied and purple horned, and15 white bodied and red horned. Test the hypothesis that the genesassociated with unicorn body and horn color are assortingindependently. What is your chi-square value?  Now assumethat your chi-square value exceeds the chi-square critical value.Does this mean you reject or fail to reject your nullhypothesis.  Now assume that you failed to reject yournull hypothesis, does this mean the two genes are independentlyassorting or that linkage is occurring?