You cross two yeast strains one is an ade auxotroph the other is a pro auxotroph and allow the diploid to sporulate. When you score each spore in the ascus you find the following proportions: 518 PD, 8 NPD, and 225 T.a.) Draw genotypes of each spore in all three of the tetrads. b.) Are these genes linked why or why not? c.) If the genes are unlinked how would you expect the progeny numbers to change if the genes were linked or if the genes are linked how would you expect the progeny numbers to change if the genes were unlinked? d.) What is the most accurate distance between these genes? e.) The formula you used in (c) is the most accurate because it takes in to account what type(s) of recombination? (shouldn't take more than a sentence or two but be descriptive.)
