Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 14, Problem 18TYPSS
Society Two mothers give birth to sons at the same time in a busy hospital. The son of couple 1 is afflicted with hemophilia A, which is a recessive X-linked disease. Neither parent has the disease. Couple 2 has a normal son even though the father has hemophilia A. The two couples sue the hospital in court, claiming that a careless staff member swapped their babies at birth. You appear in court as an expert witness. What do you tell the jury? Make a diagram that you can submit to the jury.
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In humans, color blindness is a sex-linked recessive trait. A female who is a carrier (XBXb) for color blindness has children with a male with normal vision (XBY). Make a Punnett Square to help you answer the questions. What are the chances of their children being color blind? What are the chances of their children being ‘carriers’ for color blindness?
Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color vision have a color-blind son. What are the genotypes of the parents?
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XXC and XCY
Assume that a disease called Disease B is known to be x-linked but we don’t know if it’s a dominant or recessive allele that causes it. Looking at how common this disease is in males and females would give us the answer. How?
Chapter 14 Solutions
Biological Science (6th Edition)
Ch. 14 - 1. The genes for the trails that Mendel worked...Ch. 14 - 2. CAUTION Why is the pea wrinkled-seed allele a...Ch. 14 - Prob. 3TYKCh. 14 - 4. Mendel’s rules do not correctly predict...Ch. 14 - Prob. 5TYKCh. 14 - Prob. 6TYKCh. 14 - Example Problem Two black female mice are crossed...Ch. 14 - Prob. 8TYKCh. 14 - Prob. 9TYPSSCh. 14 - Prob. 10TYPSS
Ch. 14 - 11. In garden peas, yellow seeds (Y) are dominant...Ch. 14 - Prob. 12TYPSSCh. 14 - The smooth feathers on the back of the neck in...Ch. 14 - SOCIETY As a genetic counselor, you advise couples...Ch. 14 - 15. Suppose you are heterozygous for two genes...Ch. 14 - Suppose a woman with blood type O married a man...Ch. 14 - Prob. 17TYPSSCh. 14 - Society Two mothers give birth to sons at the same...Ch. 14 - Prob. 19TYPSSCh. 14 - QUANTITATIVE Recall that hemophilia is an X-linked...Ch. 14 - Prob. 21PIATCh. 14 - Given the pedigree, what is the most likely mode...Ch. 14 - Prob. 23PIATCh. 14 - QUANTITATIVE If the son with ALD in the third...Ch. 14 - Prob. 25PIATCh. 14 - Prob. 26PIAT
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- a man has simpson syndrome, an addiction to certain television series. his wife does not have this syndrome. the couple has four children. A) can this syndrome be caused by autosomal recessive gene? B) Can it be caused by an x linked recessive allele ? C) What about wiggly ears?arrow_forwardWhat was the hypothesis of the X-linked cross conducted in the lab (between white-eyed female and re-eyed male) with the white mutation in Drosophila and written up in your lab report? A All female offspring will inherit red eyes from their mother because the mutation is X linked recessi B All female offspring will inherit white eyes from their mother because the mutation is X linked recessive. C All male offspring will inherit white eyes from their mother because the mutation is X linked recessive. D All male offspring will inherit red eyes from their mother because the mutation is X linked recessive. E All male offspring will inherit white eyes from their mother because the mutation is X linked dominant.arrow_forwardImagine a human trait that is inherited via genetic maternal effect and found on the X chromosome (x-linked recessive). If both Jill and her paternal grandmother display the phenotype, Jill’s father does not, and Jill’s sons have the phenotype, what is the most likely genotype of: (Use the symbol Xa to indicate the allele leading to this trait) a. Jill's dadarrow_forward
- Red-green color blindness is inherited as a sex-linked recessive trait. The gene is found on the X chromosome. How can a man with normal color vision father a daughter who is red-green color-blind? Group of answer choices The man is heterozygous for red-green color blindness. The woman with whom he mates is red-green color-blind. He can't (unless there is a mutation). The man's mother carries an allele for red-green color blindness, and the expression of the trait skipped a generation.arrow_forwardHow is this trait inherited? A. The trait is epistatic. B. The trait is X-linked. C. The trait is dominant. D. The trait is recessive.arrow_forwardCurly hair is recessive, and straight hair is dominant. A woman with curly hair marries a man who is homozygous dominant for straight hair. Use the picture to answer.arrow_forward
- The chromosomal theory of inheritance states thata. chromosomes contain DNA.b. humans have 23 pairs of chromosomes.c. all cells have genes.d. genes are on chromosomes.arrow_forwardColor blindness is a condition in which a person cannot distinguish specific colors from one another. For example, the person may not be able to distinguish red from green or blue from yellow. However, the person is able to distinguish some colors. Because color-blind people are not blind and they can see some colors, many people prefer to use the term color-deficient. In humans, the condition for normal vision dominates color blindness. Both alleles are linked to the X chromosome. A color-blind male marries a color-blind female. If they have a daughter, what are the chances she will have normal vision? I need the phenotype, genotype, gametes and a punnet squarearrow_forwardHemophilia is an X-linked recessive phenotype. Suppose a man who expresses the hemophilia phenotype has children with a woman who has the normal phenotype (and does not have a family history of hemophilia). If the couple have a son, what are the chances that he will have hemophilia? A) 50% B) 25% C) 0% D) 100%arrow_forward
- Hemophilia is an X-linked recessive trait in humans. A woman who is a hemophiliac and normal man have a son. What is the probability that the son inherits hemophilia? What is the probability that they would a child who is carrier? Group of answer choices 0; 0.5 0.75; 0.5 0.5; 0.5 0.25; 0.7 1.0; 0.5arrow_forwardA pedigree lists a father as the proband for a genetic disorder that he inherited from his mother. Out of his 3 children, his son inherits the condition but his two daughters do not. What can you hypothesize about this disorder? a) It is an X-linked recessive disorder. b) His wife is also a carrier of an affected X-chromosome, too. c) His son had to inherit a defective X allele from his mother since he obviously received a Y from Dad. d) Although his daughters inherited the father's mutant X allele, a wt X allele from their mother prevented them from inheriting the disorder. e) All the answers could be correct.arrow_forwardYou're trying to figure out the genotype of the mother based on the phenotypes of the offspring. Why is it helpful to breed the mother to a male that is homozygous recessive for the genes you're interested in?arrow_forward
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