Polydactly is an autosomal dominant phenotype. In this pedigree, I-2 has one copy of the dominant allele and has polydactyly. Individuals l-2 and III-2 have extra thumbnails ontheir hands. Individuals Il-3, III-1 and III-4 have extra digits on both hands and feet, Il-4 has an extra digit on one hand.1-2Il-3II-4III-1 III-2 III-3 -4Is this an example of variable expressivity? Explain why or why not.

Name: Polydactly is an autosomal dominant phenotype. In this pedigree, I-2
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Description: Polydactly is an autosomal dominant phenotype. In this pedigree, I-2 has one copy of the dominant allele and has polydactyly. Individuals l-2 and III-2 have extra thumbnails ontheir hands. Individuals Il-3, III-1 and III-4 have extra digits on both

Variable expressivity occurs due to the similar genetic condition among different people which…

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Polydactly is an autosomal dominant phenotype. In this pedigree, I-2 has one copy of the dominant allele and has polydactyly. Individuals I-2 and Ill-2 have extra thumbnails or their hands. Individuals Il-3, III-1 and III-4 have extra digits on both hands and feet, Il-4 has an extra digit on one hand. 1-2 Il-3 Il-4 III-1 III-2 III-3 II-4 Is this an example of variable expressivity? Explain why or why not.

Polydactly is an autosomal dominant phenotype. In this pedigree, I-2 has one copy of the dominant allele and has polydactyly. Individuals I-2 and Ill-2 have extra thumbnails or their hands. Individuals Il-3, III-1 and III-4 have extra digits on both hands and feet, Il-4 has an extra digit on one hand. 1-2 Il-3 Il-4 III-1 III-2 III-3 II-4 Is this an example of variable expressivity? Explain why or why not.

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter20: Chromosomes And Human Genetics

Section: Chapter Questions

Problem 7CT: The following pedigree shows the pattern of inheritance of red-green color blindness in a family....

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