Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 14, Problem 2AC
Summary Introduction
To determine:
The reason, that all the children born with X-linked SCID are boys.
Introduction:
In sex linked inheritance, the genes are associated with one of the sex chromosome; either on X, or On Y. Most of the sex linked chromosomes are associated with X chromosome, as it has longer arms which can bear more number of genes.
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Chapter 14 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 14.1 - define biotechnology?Ch. 14.1 - Prob. 2CYLCh. 14.2 - describe natural processes that recombine DNA,...Ch. 14.3 - Guilty or Innocent? When biological evidence was...Ch. 14.3 - For any single person, a given STR always has...Ch. 14.3 - Prob. 2CSCCh. 14.3 - There are many other applications in which DNA...Ch. 14.3 - Prob. 1CYLCh. 14.3 - Prob. 2CYLCh. 14.3 - Prob. 3CYL
Ch. 14.4 - Restriction enzymes are isolated from bacteria....Ch. 14.4 - explain how genes are inserted into a plasmid, and...Ch. 14.4 - Prob. 2CYLCh. 14.5 - Prob. 1HYEWCh. 14.5 - describe the advantages of genetically modified...Ch. 14.5 - list some examples of how GM animals might be...Ch. 14.5 - Prob. 3CYLCh. 14.6 - Prob. 1CYLCh. 14.6 - explain how knowledge of the genomes of humans and...Ch. 14.7 - Prob. 1TCCh. 14.7 - explain how biotechnology is used to diagnose both...Ch. 14.7 - describe the procedures and advantages of gene...Ch. 14.8 - Genetic engineering is used both in food crops and...Ch. 14.8 - explain why people might be opposed to the use of...Ch. 14.8 - envision circumstances in which it would be...Ch. 14.8 - Prob. 1CSRCh. 14.8 - Prob. 2CTCh. 14 - Prob. 1MCCh. 14 - Prob. 2MCCh. 14 - Prob. 3MCCh. 14 - A restriction enzyme a. cuts DNA at a specific...Ch. 14 - Prob. 5MCCh. 14 - Prob. 1FIBCh. 14 - _________is the process whereby bacteria pick up...Ch. 14 - The _______ is a technique tor multiplying DNA in...Ch. 14 - Matching DNA samples in forensics uses a specific...Ch. 14 - Prob. 5FIBCh. 14 - Prob. 1RQCh. 14 - Prob. 2RQCh. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - How does gel electrophoresis separate pieces of...Ch. 14 - Prob. 7RQCh. 14 - Prob. 8RQCh. 14 - Prob. 9RQCh. 14 - Prob. 10RQCh. 14 - As you may know, many Insects have evolved...Ch. 14 - Prob. 2AC
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- An individual with 46, XX genotype is diagnosed with Duchenne-type Muscular Dystrophy, a recessive X-linked disorder. Genetic tests confirm that this individual is a heterozygote for this disorder. Briefly, but specifically, explain how it’s possible that they are showing symptoms of this disorder.arrow_forwardLauren reports that she had a maternal male cousin (through a maternal aunt) and a maternal great uncle (maternal grandmother’s brother) both pass away from the same x-linked lethal condition. Both affected individuals did not have genetic testing. Lauren has a normal carrier screen for x-linked lethal conditions, which you know identifies 40% of causative mutations. If Lauren is currently pregnant with a male child, what is the chance that this child will have the condition?arrow_forwardDiscuss why X-linked disorders are more common thanY-linked disorders.arrow_forward
- Please use instructions from above Hemophilia is an x-linked disease of the blood. What is the probability of producing an unaffected son by a father who is unaffected and a mother who is a carrier of hemophilia?arrow_forward3) Queen Victoria of England, who ruled from 1837-1901, is believed to have been the carrier of hemophilia. Hemophilia is an X-linked disease in which the blood is unable to form clots. Please make a Punnet Square using the scenario below and answer the following questions. Queen Victoria married a man who did not have the hemophilia trait or disease. What is the likelihood that they would have a child with hemophilia? What is the likelihood that they would have a son with hemophilia? What is the likelihood that they would have a daughter with hemophilia?arrow_forwardHemophilia is another example of an X-linked disease caused when a recessive allele (Xh) is expressed. If a normal male reproduces with a heterozygous normal female, what are the expected genotypes and phenotypes? Will any of their daughters develop hemophilia?arrow_forward
- Consider a couple: a woman who is homozygous for a recessive mutation that causes X-linked colorblindness, and a man with full color vision (he does not carry a copy of the mutation). a) What is the probability that a son of this couple will be colorblind? b) What is the probability that a daughter of the couple will be colorblind?arrow_forwardPredict the probability (using a Punnett square) of producing an offspring affected by a single gene X-linked mutation given the genotype of the parents. Compare these crosses in two cases: where the mutant allele is “A” vs where the mutant allele is “a” (XAXA x XaY) (XAXa x XAY) (XAXa x XaY) (XaXa x XAY) (XaXa x XaY). Include gender in the phenotype.arrow_forwardIf a father is affected by an X-linked dominant condition and the mother is normal, what is the probability of their children being affected? All sons will be affected. Half of the sons will be affected. All daughters will be affected. Half of the daughters will be carriers.arrow_forward
- . In humans, hemophilia is an X-linked recessive gene and will only be expressed in females if they are homozygous for this gene. However, in some rare cases, a heterozygote becomes hemophilic. Explain how this incident happens and why will there be skewed X-inactivation?arrow_forwardWhat is the karyotype for women who have an extra X-chromosome? Discuss all the ways you can test for this abnormality.arrow_forwardNote: Don't copy from internet, Also answer correctly in terms of diploid, hemizygous, and carrier!! Thanks Explain why genetic disorders caused by recessive alleles of X-linked genes appear more frequently in males than in females? In your explanation, please include explanations of the following terms: diploid, hemizygous, carrier.arrow_forward
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