Monohybrid Cross Problem Set
Problem 9: Incomplete dominance
In Mendel's experiments, if the gene for tall (T) plants
was incompletely dominant over the gene for short (t)
plants, what would be the result of crossing two Tt
A. 1/4 would be tall; 1/2 intermediate height; 1/4 short
B. 1/2 would be tall; 1/4 intermediate height; 1/4 short.
C. 1/4 would be tall; 1/4 intermediate height; 1/2 short.
D. All the offspring would be tall.
E. All the offspring would be intermediate.
The Biology Project
Department of Biochemistry and Molecular
University of Arizona
Thursday, October 1, 1998
Revised: November 2004
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