Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 11.4, Problem 1CC
Beth and Tom each have a sibling with cystic fibrosis, but neither Beth nor Tom nor any of their parents have the disease. Calculate the probability that if this couple has a child, the child will have cystic fibrosis. What would be the probability if a test revealed that Tom is a carrier but Beth is not? Explain your answers.
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Chapter 11 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Ch. 11.1 - DRAW IT Pea plants heterozygous for flower...Ch. 11.1 - List all gametes that could be made by a pea plant...Ch. 11.1 - Prob. 3CCCh. 11.2 - For any gene with a dominant allele A and...Ch. 11.2 - Two organisms, with genotypes BbDD and BBDd, are...Ch. 11.2 - Prob. 3CCCh. 11.3 - Incomplete dominance and epistasis are both terms...Ch. 11.3 - Prob. 2CCCh. 11.3 - WHAT IF? A rooster with gray feathers and a hen of...Ch. 11.4 - Beth and Tom each have a sibling with cystic...
Ch. 11.4 - MAKE CONNECTIONS In Table 11.1, note the...Ch. 11 - DRAW IT Two pea plants heterozygous for the...Ch. 11 - A man with type A blood marries a woman with type...Ch. 11 - A man has six fingers on each hand and six toes on...Ch. 11 - Prob. 4TYUCh. 11 - Flower position, stem length, and seed shape are...Ch. 11 - Prob. 6TYUCh. 11 - Prob. 7TYUCh. 11 - Prob. 8TYUCh. 11 - Prob. 9TYUCh. 11 - Prob. 10TYUCh. 11 - In tigers, a recessive allele that is pleiotropic...Ch. 11 - Prob. 12TYUCh. 11 - Imagine that you are a genetic counselor, and a...Ch. 11 - Prob. 15TYUCh. 11 - Prob. 16TYUCh. 11 - Prob. 17TYU
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- Kathy's brother has cystic fibrosis. Her husband has no family history of CF. What is the chance that Kathy's child will have cystic fibrosis? 1/2 x 1/2 = 1/4 1/3 x 1/2 = 1/6 2/3 x 1/4 = 1/6 2/3 x 1/2 = 1/3 2/3 x 0 = 0arrow_forwardNeither Tim nor Rhoda has Duchenne muscular dystrophy, but their firstborn son does. What is the probabilitythat a second child will have the disease? What is theprobability if the second child is a boy? A girl?arrow_forwardMarly is doing a paternity test to determine who could be her father. She is going just off of word of mouth for now so there is no way for her to figure out the genotypes of ther potential fathers. She knows for certain that she is type A with the genotype (A^I A^i). Her potential fathers are Gayle who is a Type O, Jake who is type A,and Mark who is Type AB. Who could be the potential father?arrow_forward
- Mrs. Dela Cruz suffers cystic fibrosis and married a carrier for the disease. What is the percentage that their offspring will express the disease?arrow_forwardHemophilia is a sex-linked recessive trait. A male hemophiliac and phenotypically normal female have a son with hemophilia. They would like to have one more child. What is the probability of having a child without hemophilia? Explain using a Punnett square. Is it possible for a girl to be born with hemophilia? Explain.arrow_forwardCathy is pregnant for the second time. Her first child, Donald, has cystic fibrosis. Cathy has two brothers Charles and Colin, and a sister, Cindy. Colin and Cindy are unmarried. Charles is married to an unrelated woman, Carolyn, and has a 2-year old daughter, Debbie. Cathy's parents are Bob and Betty. Betty's sister Barbara is the mother of Cathy's husband, Calvin, who is 25. There is no previous family history of CF. Assume that everyone in this family is of Northern European Origin. A. Sketch the pedigree, using standard symbols. B. What is the pattern of transmission of CF, and what is the risk for CF for Cathy's next child? C. Which people in this pedigree are compound heterozygotes? D. What is the chance of Charles having a child with cystic fibrosis? Show your work.arrow_forward
- Cathy is pregnant for the second time. Her first child, Donald, has cystic fibrosis. Cathy has two brothers Charles and Colin, and a sister, Cindy. Colin and Cindy are unmarried. Charles is married to an unrelated woman, Carolyn, and has a 2-year old daughter, Debbie. Cathy's parents are Bob and Betty. Betty's sister Barbara is the mother of Cathy's husband, Calvin, who is 25. There is no previous family history of CF. Assume that everyone in this family is of Northern European Origin. D. What is the chance of Charles having a child with cystic fibrosis? Show your work.arrow_forward19)arrow_forwardA son with cystic fibrosis is born to a couple that appears normal. What are the chances that any child born to this couple will have cystic fibrosis? If this couple had three normal children, what are the chances that the fourth child will have cystic fibrosis?arrow_forward
- A couple is both heterozygous for the autosomal recessive disease cystic fibrosis (CF). What is the probability that their first child will either be a girl or have CF but not both?arrow_forwardAt her first prenatal visit, a woman relates that her maternal aunt has cystic fibrosis, an autosomal recessive illness. Which of the following statements is appropriate for the nurse to make? a. It is unnecessary for you to worry since our aunt is not a direct relation." b. "We can check to see whether or not you are a carrier for cystic fibrosis." c. "You should have an amniocentesis to see whether or not your child has the disease." d. Please ask your mother whether she has ever had any symptoms of cystic fibrosisarrow_forwardJohn has alkaptonuria; it "runs in the family". John and his grandmother are both homozygous for alkaptonuria. John's grandmother has two brothers and a sister. One of the brothers had alkaptonuria and his daughter is John's mother. Based on this information, John's parents are:arrow_forward
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