The pedigree below shows a family with a history of an autosomal recessive genetic disease with one individual's genotype indicated (G denotes the normal allele and g denotes the disease-causing allele). * 00 O 1/8 O 1/4 Individual 1's father is known to be heterozygous (*) and his mother is known to be homozygous dominant. Other individuals in the pedigree may be carriers, but are not marked. The question mark (?) indicates that you do not yet know anything about this individual's phenotype with regard to the disease. O 1/16 Part 1 What is the probability that individuals 1 and 2 will have a child (5) who is a male with the disease (the child is unborn and the sex is not yet known)? 1/4 1 O 1/6 ? 5 1/8 2 O 1/12 gg 3 Part 2 What is the probability that the daughter (female)(6) that individual 3 and 4 just had will have the disease? 6
The pedigree below shows a family with a history of an autosomal recessive genetic disease with one individual's genotype indicated (G denotes the normal allele and g denotes the disease-causing allele). * 00 O 1/8 O 1/4 Individual 1's father is known to be heterozygous (*) and his mother is known to be homozygous dominant. Other individuals in the pedigree may be carriers, but are not marked. The question mark (?) indicates that you do not yet know anything about this individual's phenotype with regard to the disease. O 1/16 Part 1 What is the probability that individuals 1 and 2 will have a child (5) who is a male with the disease (the child is unborn and the sex is not yet known)? 1/4 1 O 1/6 ? 5 1/8 2 O 1/12 gg 3 Part 2 What is the probability that the daughter (female)(6) that individual 3 and 4 just had will have the disease? 6
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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Step 1: Introduction
Pedigree analysis is a family chart used to study the inheritance pattern of traits or diseases within a family and family history. It is a type of family tree that depicts the relationship between family members and their phenotypes (observed traits or diseases). It is easier for geneticists to understand the transmission of genetic traits and identify the patterns of inheritance such as autosomal dominant, autosomal recessive, X-linked etc.
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