Monohybrid Cross Problem Set
Problem 13: Predicting human blood types
What are the possible blood types of the offspring of a
cross between individuals that are type AB and type O?
(Hint: blood type O is recessive)
A. AB or O
B. A, B, or O
C. A or B
A cross between individuals that are of genotype IAIBx ii can yield offspring that are either IAi or IBi. Their blood type will be A or B.
D. A, B, AB, or O
E. A, B, or AB
The Biology Project
Department of Biochemistry and Molecular
University of Arizona
Thursday, October 1, 1998
Revised: November 2004
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