Dihybrid Cross

Problem 5: A SsYy x ssyy test cross.

Which of the following genotypes would you not expect to find among the offspring of a SsYy x ssyy test cross:

A. ssyy

B. SsYy

C. Ssyy

D. ssYy

E. SsYY

Offspring could not be homozygous for the dominant yellow seed color (YY), because one recessive y allele must be inhereited from the ssyy parent.


The Biology Project
University of Arizona
Tuesday, August 13, 1996
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