Monohybrid Cross Problem Set

Problem 2: Mendel's First Law

A phenotypic ratio of 3:1 in the offspring of a mating of two organisms heterozygous for a single trait is expected when:
A. the alleles segregate during meiosis.

B. each allele contains two mutations.

C. the alleles are identical.

D. the alleles are incompletely dominant.

E. only recessive traits are scored.

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Thursday, October 1, 1998
Revised: November 2004
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