Part 2. Upon further testing of individuals in the previous question, you discover that III-3 is heterozygous (Pp) but has a wild type phenotype (does not show polydactyly). What term describes this phenotype? multiple alleles codominance incomplete dominance incomplete penetrance O O O O

Human Biology (MindTap Course List)
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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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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 on
their hands. Individuals II-3, Ill-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
II-4
III-1 III-2 III-3 I-4
Transcribed Image Text: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 on their hands. Individuals II-3, Ill-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 II-4 III-1 III-2 III-3 I-4
Part 2. Upon further testing of individuals in the previous question, you discover that III-3 is heterozygous (Pp) but has a wild type phenotype (does not show polydactyly).
What term describes this phenotype?
multiple alleles
codominance
incomplete dominance
incomplete penetrance
O 0 0 O
Transcribed Image Text:Part 2. Upon further testing of individuals in the previous question, you discover that III-3 is heterozygous (Pp) but has a wild type phenotype (does not show polydactyly). What term describes this phenotype? multiple alleles codominance incomplete dominance incomplete penetrance O 0 0 O
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