Here are the phenotypes for the following genotypes (capital letters are dominant): T tall, t short,...

Here are the phenotypes for the following genotypes (capital letters are dominant): T tall, t short, S smooth kernel, s wrinkled kernel, R purple kernel, r yellow kernel. The resulting F1s are test-crossed and you get the following results: Use an extra page or the back if you need more space- just make sure to scan and send me all work)

tall smooth purple 65 tall smooth yellow 12 tall wrinkled purple 451 tall wrinkled yellow 123 short smooth purple 116 short smooth yellow 445 short wrinkled purple 14 short wrinkled yellow 74

What were the parental phenotypes?
Are these loci linked? If so, which gene is in the middle?
Map the three genes and give the distances between the three loci.

Solutions

Expert Solution

Ans: The parental phenotypes are Tall wrinkled purple and Short smooth yellow because the parental phenotypes have the maximum frequency.

Double crossover phenotypes are least frequency.

The loci are linked but they are in repulsion phase. The gene T is in the middle.

The map between three gene and their distance are given below-

gladiator answered 1 year ago

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