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AP Biology/Unit 5: Heredity
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Determining Parent Genotype from Phenotypic Ratio

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Self-pollination of a tall pea plant yields offspring with an approximate 3:1 phenotypic ratio of tall to short plants. What is the genotype of the parent plant?

A

TtTt

B

tttt

C

TTTT

D

It could be either TTTT or TtTt.

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