Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 11.5, Problem 1CSC
Summary Introduction
To explain: The way in which other traits are significantly influenced by the environment and by the alleles of other genes that are individual inherits like for example Marfan disease.
Introduction: The environment has a role in the occurrence of various diseases, which includes various factors such as polluted water, air, metal toxicity, poor health and hygiene, and effect of ultra-violet and infra-red radiations on the human body. The diseases like cancer are also caused due to the effect of chemicals, radiations, and due to infection caused by virus and bacteria.
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Which of the following best explains how individuals who inherit phenylketonuria alleles can avoid the symptoms of this disease (mental impairment, foul smelling urine)?
It exhibits variable expressivity.
The expression of this disease depends on the environment. If the individual removes phenylalanine from their diet they can avoid the disease entirely.
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Below in Figure 1 is a pedigree for a family afflicted by a genetic disorder. In some populations, Cystic fibrosis has an incidence of 1 in 2500 newborns. The carrier frequency calculated from this is 1/25. Analyze the pedigree below assuming the disease is similar to cystic fibrosis in incidence and carrier frequency. However this disease may not have the same type of genetic transmission as cystic fibrosis.
What type of genetic transmission is most consistent with the pedigree?
Label all the individuals that you can determine, with hypothesized genotypes.
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Use the Χ2 test to determine whether your proposed transmission fits this data.
Below in Figure 1 is a pedigree for a family afflicted by a genetic disorder. In some populations, Cystic fibrosis has an incidence of 1 in 2500 newborns. The carrier frequency calculated from this is 1/25. Analyze the pedigree below assuming the disease is similar to cystic fibrosis in incidence and carrier frequency. However this disease may not have the same type of genetic transmission as cystic fibrosis.
What type of genetic transmission is most consistent with the pedigree?
Label all the individuals that you can determine, with hypothesized genotypes.
Label the individuals that have unknown genotypes with possible genotypes.
Assuming her father is known to NOT be a carrier, calculate the probability that IV1 is a carrier for disease.
Use the Χ2 test to determine whether your proposed transmission fits this data.
Chapter 11 Solutions
Biology
Ch. 11.1 - describe the relationships among chromosomes,...Ch. 11.1 - Prob. 2CYLCh. 11.2 - distinguish between self-fertilization and...Ch. 11.2 - Prob. 2CYLCh. 11.3 - Prob. 1TCCh. 11.3 - Prob. 1CSCCh. 11.3 - describe the pattern of inheritance of a trait...Ch. 11.3 - Prob. 2CYLCh. 11.3 - Prob. 3CYLCh. 11.4 - Can the genotype of a plant grown from a smooth,...
Ch. 11.4 - Prob. 2TCCh. 11.4 - Prob. 1CYLCh. 11.4 - Prob. 2CYLCh. 11.4 - Prob. 3CYLCh. 11.5 - Prob. 1TCCh. 11.5 - Prob. 1CSCCh. 11.5 - Prob. 1HYEWCh. 11.5 - Prob. 1CYLCh. 11.5 - Prob. 2CYLCh. 11.6 - describe how the patterns of inheritance differ...Ch. 11.7 - If a color-deficient woman and a man with normal...Ch. 11.7 - Prob. 1CYLCh. 11.7 - explain why most sex-linked traits are controlled...Ch. 11.7 - describe the pattern of inheritance of sex-linked...Ch. 11.8 - Prob. 1TCCh. 11.8 - use pedigrees to determine the pattern of...Ch. 11.8 - Prob. 2CYLCh. 11.8 - Prob. 3CYLCh. 11.8 - Prob. 2TCCh. 11.8 - Prob. 1CTCh. 11 - Prob. 1MCCh. 11 - Prob. 2MCCh. 11 - Independent assortment means that a. two genes on...Ch. 11 - Prob. 4MCCh. 11 - Prob. 5MCCh. 11 - An organism is described as Rr, with red coloring....Ch. 11 - Prob. 2FIBCh. 11 - Prob. 3FIBCh. 11 - Genes that are present on one sex chromosome but...Ch. 11 - Prob. 5FIBCh. 11 - Define the following terms: gene, allele,...Ch. 11 - Prob. 2RQCh. 11 - Prob. 3RQCh. 11 - Prob. 4RQCh. 11 - Prob. 5RQCh. 11 - Prob. 6RQCh. 11 - Prob. 1ACCh. 11 - Prob. 2ACCh. 11 - In certain cattle, hair color can be red...Ch. 11 - In the edible pea, tall (T) is dominant to short...Ch. 11 - Prob. 3GPCh. 11 - Prob. 4GPCh. 11 - Prob. 5GP
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