10
QuizMultiple Choice

Lab: Mouse Genetics (One Trait) — Cumulative exam

Question 10 • IS - O - 3490 - The Living Earth B CP Online

Pea plants can have yellow seeds or green seeds. Which conclusion about the meaning of Y is correct if the allele combination Yy is for yellow seeds?

Answer
A
yellow and dominant
B
green and recessive
C
yellow and recessive
D
green and dominant

Explanation

The allele combination Yy produces yellow seeds, so the allele represented by Y is associated with the yellow trait. Because yellow appears when Y is paired with the other allele y, Y is dominant. Therefore, Y means yellow and dominant.

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