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What is the probability that a cross between a true-breeding pea plant with round seeds and a true-breeding pea plant with wrinkled seeds will produce F 1 progeny with round seeds? OA.0 B. 1/4 C. 1/2 D.1 OE. 1/8

What is the probability that a cross between a true-breeding pea plant with round seeds and a true-breeding pea plant with wrinkled seeds will produce F 1 progeny with round seeds? OA.0 B. 1/4 C. 1/2 D.1 OE. 1/8

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Question:** What is the probability that a cross between a true-breeding pea plant with round seeds and a true-breeding pea plant with wrinkled seeds will produce F₁ progeny with round seeds? **Options:** - A. 0 - B. 1/4 - C. 1/2 - D. 1 - E. 1/8 **Explanation:** This question involves Mendelian genetics, specifically the concept of dominant and recessive traits. Round seeds (R) are a dominant trait, while wrinkled seeds (r) are recessive. A true-breeding round seed plant has the genotype RR, and a true-breeding wrinkled seed plant has the genotype rr. When these two plants are crossed, the F₁ progeny will inherit one allele from each parent, resulting in the genotype Rr. Since the round seed trait is dominant, all F₁ progeny will exhibit round seeds. Therefore, the probability that the F₁ progeny will have round seeds is 1 (100%). **Correct Answer: D. 1**
Transcribed Image Text:**Question:** What is the probability that a cross between a true-breeding pea plant with round seeds and a true-breeding pea plant with wrinkled seeds will produce F₁ progeny with round seeds? **Options:** - A. 0 - B. 1/4 - C. 1/2 - D. 1 - E. 1/8 **Explanation:** This question involves Mendelian genetics, specifically the concept of dominant and recessive traits. Round seeds (R) are a dominant trait, while wrinkled seeds (r) are recessive. A true-breeding round seed plant has the genotype RR, and a true-breeding wrinkled seed plant has the genotype rr. When these two plants are crossed, the F₁ progeny will inherit one allele from each parent, resulting in the genotype Rr. Since the round seed trait is dominant, all F₁ progeny will exhibit round seeds. Therefore, the probability that the F₁ progeny will have round seeds is 1 (100%). **Correct Answer: D. 1**
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