A monohybrid cross between two pea plants producing yellow peas, resulting in an F1 phenotypic ratio of 3:1 (three yellow pea plants to one green pea plant) indicates what about the parental pea plants?

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter3: Transmission Of Genes From Generation To Generation
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A monohybrid cross between two pea plants producing yellow peas, resulting in an F1 phenotypic ratio of 3:1 (three yellow pea plants to one green pea plant) indicates what about the parental pea plants?

  1. one parental pea plant is homozygous dominant, and the other is homozygous recessive
  2. both parental pea plants are homozygous dominant
  3. one parental pea plant is homozygous dominant, and the other is heterozygous
  4. both parental pea plants are heterozygous
  5. one parental pea plant is homozygous recessive, and the other is heterozygous
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