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QuizMultiple Choice

Lab: Heredity and Punnett Squares — Unit test

Question 1 • FL-2002070-M/J Comprehensive Science 2

Which best describes the offspring of a solid-colored cow (CC) with a spotted cow (SS), assuming the alleles are codominant?

Answer
A
All the offspring will have stripes.
B
All the offspring will be completely solid.
C
All the offspring will be completely spotted.
D
All the offspring will have a mixture of spots and solid colors.

Explanation

The solid-colored cow can pass only a C allele, and the spotted cow can pass only an S allele. Therefore, every offspring will have the genotype CS. With codominance, both alleles are expressed, so all offspring will show a mixture of spots and solid color.

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