Genetic Analysis: An Integrated Approach (3rd Edition)
Genetic Analysis: An Integrated Approach (3rd Edition)
3rd Edition
ISBN: 9780134605173
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter 19, Problem 29P

A three-gene system of additive genes (A, B, and C) controls plant height. Each gene has two alleles (A and a, B and b, and C and c). There is dominance among the alleles of each gene, with alleles A, B, and C dominant over a, b and c. Under this scheme, the dominant genotype for a gene contributes 10 cm to height potential, and the recessive genotype contributes 4 cm.

a. What is the height potential of a plant that is homozygous for all three dominant alleles?

b. What is the height potential of a plant that is homozygous for all three recessive alleles?

c. What is the height potential of the F 1 progeny of the homozygous plants identified in (a) and (b) of this problem?

d. What are the phenotypes and proportions of each phenotype among the F 2 ?

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Genetic Analysis: An Integrated Approach (3rd Edition)

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