BIOLOGY: LIFE ON EARTH-W/MASTERING ACCE
2020th Edition
ISBN: 9780135686553
Author: Audesirk
Publisher: PEARSON
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Chapter 14, Problem 2AC
All children born with X-linked SCID are boys. Can you explain why?
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X-linked disorders (like hemophilia) are more likely to affect people of one gender than the other. Which gender is this, and why are x-linked disorders more likely to affect people of this gender?
Why are males affected by X-linked disorders much more oftenthan females?
. 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?
Chapter 14 Solutions
BIOLOGY: LIFE ON EARTH-W/MASTERING ACCE
Ch. 14 - Which of the following is not true of a single...Ch. 14 - Imagine you are looking at a DNA profile that...Ch. 14 - 3. Which of the following is not a commonly used...Ch. 14 - Prob. 4MCCh. 14 - 5. DNA cloning is
a. making multiple genetically...Ch. 14 - Are organisms that contain DNA that has been...Ch. 14 - 2._________ is the process whereby bacteria pick...Ch. 14 - 3. The______ is a technique for multiplying DNA in...Ch. 14 - Matching DNA samples in forensics uses a specific...Ch. 14 - Prob. 5FTB
Ch. 14 - Prob. 1RQCh. 14 - 2. What is a plasmid? How are plasmids involved in...Ch. 14 - 3. What is a restriction enzyme? How can...Ch. 14 - 4. Describe the polymerase chain reaction.
Ch. 14 - What is a short tandem repeat? How are short...Ch. 14 - How does gel electrophoresis separate pieces of...Ch. 14 - How are DNA probes used to identify specific...Ch. 14 - Prob. 8RQCh. 14 - Describe several uses of genetic engineering in...Ch. 14 - Prob. 10RQCh. 14 - 1. As you may know, many insects have evolved...Ch. 14 - 2. All children born with X-linked SCID are boys....
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Normal vision (XA) in humans is dominant to color blindness (Xa) and is X-linked. A man with normal vision, whose father was colorblind, marries a colorblind woman. What are the chances that a son will be colorblind? What are the chances that a daughter will be colorblind? The determiner for brown eyes (B) is dominant to blue eyes (b) and is not X-linked. A colorblind man with brown eyes, whose mother was blue-eyed, marries a blue-eyed woman having normal vision, whose father was colorblind. Show the expected phenotypes ratio of their children involving eye color, color blindness, and sex.arrow_forwardPlease 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_forwardIn an X linked condition "b" , a person with genotype XbX , can be described as what ? a) female who has the disease b) female who is a carrier c) male with disease d) male with no disease ( Not sure if that was more detailed ? )arrow_forward
- Jane is heterozygous for both X-linked traits like her mother. Her father is normal for both X-linked traits. James has a mother who suffers from G6PDD but not from fragile X-syndrome. His father does not exhibit any X-linked disorder but has amelogenesis imperfecta. What are the genotypes of the following: Jane: ______________________ James: ______________________ Jane’s mother: _________________ James’ mother: ________________ Jane’s father: __________________ James’ father: _________________arrow_forwardCould a woman who expresses the x-linked color-blind trait have a son with normal vision?arrow_forwardDescribe how X-linked traits are inherited and explain how X-linked inheritance is different from simple dominance inheritancearrow_forward
- Colorblindness is an X-linked trait found in humans. What are the chances that a colorblind man will pass it on to his son? Please explain.arrow_forwardIf a woman is a carrier of a certain x linked disease and one of her X chromosomes is turned off in each cell how is it she doesn't have the disease?arrow_forwardWhat is x linked genes?arrow_forward
- Could a woman with the X-linked color-blind trait have a son without colorblindness? Use a Punnett square to explain your answer.arrow_forwardA family has an X-linked dominant form of congenital generalizedhypertrichosis (excessive hairiness). Although the allele is dominant,males are more severely affected than females. Moreover, the womenin the family often have asymmetrical, hairy patches on their bodies.How does X chromosome inactivation explain this observation?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
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