In tomatoes, one gene determines whether the plant has purple (P) or green (G) stems, and a separate, independent gene determines whether the leaves are “cut” (C) or “potato” (Po). Five matings of tomato-plant phenotypes give the following results: Parental Number of progeny Mating phenotypes P, C P, Po G, C G, Po 1 P, C × G, C 323 102 309 106 2 P, C × P, Po 220 206 65 72 3 P, C × G, C 723 229 0 0 4 P, C × G, Po 405 0 389 0 5 P, Po × G, C 71 90 85 78 a. Which alleles are dominant? b. What are the most probable genotypes for the parents in each cross?
In tomatoes, one gene determines whether the plant has purple (P) or green (G) stems, and a separate, independent gene determines whether the leaves are “cut” (C) or “potato” (Po). Five matings of tomato-plant phenotypes give the following results: Parental Number of progeny Mating phenotypes P, C P, Po G, C G, Po 1 P, C × G, C 323 102 309 106 2 P, C × P, Po 220 206 65 72 3 P, C × G, C 723 229 0 0 4 P, C × G, Po 405 0 389 0 5 P, Po × G, C 71 90 85 78 a. Which alleles are dominant? b. What are the most probable genotypes for the parents in each cross?
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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In tomatoes, one gene determines whether the plant has
purple (P) or green (G) stems, and a separate, independent gene determines whether the leaves are “cut” (C) or
“potato” (Po). Five matings of tomato-plant
give the following results: Parental Number of progeny
Mating phenotypes P, C P, Po G, C G, Po
1 P, C × G, C 323 102 309 106
2 P, C × P, Po 220 206 65 72
3 P, C × G, C 723 229 0 0
4 P, C × G, Po 405 0 389 0
5 P, Po × G, C 71 90 85 78
a. Which alleles are dominant?
b. What are the most probable genotypes for the parents
in each cross?
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