Human Biology Custom Edition
11th Edition
ISBN: 9781337631532
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 19, Problem 6CT
The ABO blood system has been used to settle cases of disputed paternity. Suppose, as a geneticist, you must testify during a case in which the mother has type A blood, the child has type O blood, and the alleged father has type B blood. How would you respond to the following statements?
- a. Man’s attorney: “The mother has type A blood, so the child’s type O blood must have come from the father. Because my client has type B blood, he could not be the father.”
- b. Mother’s attorney: “Further tests prove this man is heterozygous, so he must be the father.”
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Last year, a young woman sued film star/director, Mr. Wensley, for parental support of her illegitimate child. Mr. Wensley’s blood type was already on record as type AB. The mother of the child had type A and her son had type O blood.
a.1. Complete a Punnett square for the possible cross of Mr. Wensley and the mother of the baby.
a.2. The judge ruled in favor of the mother and ordered Mr. Wensley to pay child support costs of the child. Was the judge correct in his decision based on blood typing evidence? Explain why or why not.
Show any Punnett squares to support your answer.
On a recent episode of CSI, multiple people came forward claiming to be parents of a crime victim. For the first set of parents, the man has Type AB blood while the woman has Type O blood and the victim has Type B blood. Use the Punnett square and determine if it is possible for these people to be the true parents of the victim.
A. Could these be the parents? __________
B. From the list below, circle each of those options which could be parents of the victim.
Couple Blood Typesa) Bob & Gina Type O and Type Ob) Ted & Susan Type AB and Type ABc) Rob & Kelly Type A and Type Ad) Tricia & James Type A and Type B
Mrs. Smith and Mrs. Jones had baby girls the same day in the same hospital. Mrs. Smith named her baby Selena and Mrs. Jones named her baby Jessica. Mrs. Jones began to suspect however that the babies had been switched. (This was in the day before DNA tests were possible.) Blood tests were done with the following results:
Mr. Smith type A
Mr. Jones type A
Mrs. Smith type B
Mrs. Jones type A
Selena type O
Jessica type B
Had a mix-up occurred? How do you know?
Chapter 19 Solutions
Human Biology Custom Edition
Ch. 19 - Define the difference between (a) gene and allele,...Ch. 19 - Prob. 2RQCh. 19 - What is probability, and how is it applied in...Ch. 19 - What is independent assortment? Does independent...Ch. 19 - Alleles are ___________. a. alternate forms of a...Ch. 19 - A heterozygote has _____. a. only one of the...Ch. 19 - Prob. 3SQCh. 19 - Offspring of a cross AA aa are ______. a. all AA...Ch. 19 - Prob. 5SQCh. 19 - Prob. 6SQ
Ch. 19 - Which statement best fits the principle of...Ch. 19 - Prob. 8SQCh. 19 - Prob. 9SQCh. 19 - Prob. 10SQCh. 19 - One gene has alleles A and a. Another has alleles...Ch. 19 - Still referring to Problem 1, what will be the...Ch. 19 - Go back to Problem 1, and assume you now study a...Ch. 19 - The young woman shown at right has albinismvery...Ch. 19 - When you decide to breed your Labrador retriever...Ch. 19 - The ABO blood system has been used to settle cases...Ch. 19 - Prob. 7CTCh. 19 - A man is homozygous dominant for ten different...Ch. 19 - Prob. 9CTCh. 19 - Bill and Marie each have flat feet, long...Ch. 19 - You decide to breed a pair of guinea pigs, one...
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- Mrs. Moon has type B blood. Mr. Lee has type O blood. Their son Haneul has type O blood. Make a Punnett square to show what Mrs. Moon's genotype must be to have a child with type O blood.arrow_forwardSituation: Guinevere decides to trace the inheritance of her blood type through her family, all the way back to her great-grandmother Natalia. Guinevere's great-grandmother Natalia, has type A blood. Natalia and her husband Claude have five children-three sons, Miguel (who has blood type A), Mark (who has blood type B) and David (who has type AB blood); a daughter (Jane) with type O blood and another daughter (Janella) with type A blood. Jane marries a man and they have two sons (Marco and Polo) who both are blood type A and a daughter (Mara) who has blood type B; Janella on the other hand marries a man and together have three sons (one with blood type A, one with AB, and one with O). Miguel marries a woman with type O blood and together they have three children (daughter Frances and son Albert who both have type A blood, and a son Mike with type O blood). Mike marries Johann and together they have one daughter, Guinevere. Guinevere knows that her parents both have the same blood type,…arrow_forwardJill has a son named Jack. She claims that James is the father. James denies this. Jill has Type A blood. Jack has Type O blood. James has Type B blood. Based on this information, what would a court decide on this problem? Question 3 options: James could be the father of Jack because James could be heterozygous James is not the father of Jack because their phenotypes are different James is not the father of Jack because their genotypes are different James could be the father of Jack because type B blood is usually I^Bi James is the father of Jack because he passed on a recessive allelearrow_forward
- In a well-publicized paternity case, the following facts were determined: the mother, a beautiful, twice-convicted axe murderer, is blood type A. Her child, Lizzie, is type O and the alleged father, a mild-mannered felon convicted of check fraud, is type B. On the last day of the trial, another father – a missionary worker with blood type O is identified. Which of the two could be Lizzie’s father? Use the space below to support your conclusion. I am really confused with the queshtion and need help finding the answer and how to prove can somone explain the answer and show it in a punnet sqaure pleasearrow_forwardGina has blood type O. Her mother’s blood type is A. What are the possible genotypes of her father? Select Yes or No for all blank answers. AB Answer A Answer B Answer O Answerarrow_forwardMrs. Kaur and Mrs. Sharma had babies on the same day at the same hospital. Mrs. Kaur took home a girl (Harleen) and Mrs. Sharma received a boy (Baldeep). However, Mrs. Sharma was sure she had given birth to a girl and brought a suit against the hospital. Blood tests showed that Mr. Sharma was type O. Mrs. Sharma was type AB and Mr. & Mrs. Kaur were both type B. Harleen was type O and Baldeep was type A. Had a mistake occurred? Did the parents bring home the incorrect babies? a. What is Harleen's determined genotype? b. What is Baldeep's determined genotype? c. What is Mr. Kaur's determined genotype? d. What is Mrs. Kaur's determined genotype? | e. What is Mrs. Sharma's genotype? f. What is Mr. Sharma's genotype? Has a switch occurred? Why or why not?arrow_forward
- Mrs. Kaur and Mrs. Sharma had babies on the same day at the same hospital. Mrs. Kaur took home a girl (Harleen) and Mrs. Sharma received a boy (Baldeep). However, Mrs. Sharma was sure she had given birth to a girl and brought a suit against the hospital. Blood tests showed that Mr. Sharma was type O. Mrs. Sharma was type AB and Mr. & Mrs. Kaur were both type B. Harleen was type O and Baldeep was type A. Had a mistake occurred? Did the parents bring home the incorrect babies? a. What is Mr.sharma genotype b. What is Mrs.sharma genotype c. What is Mrs. Kaur genotype Has a switch occurred? Why or why not?arrow_forwardIn another court case there are three possible fathers (and only 3). The mother has type B blood, and the child has type O blood. One suspect father, John, has type AB blood. Another suspect father, Larry, has type A blood. Both of Larry’s parents were AB. A third suspect father, George, has type A blood. George’s mother had type AB blood and his father had type A. Who is the father of this child?arrow_forwardIn 1967, a couple accused a hospital of switching their baby with another. DNA interpretation did not exist at this time so the hospital traced the blood types of the family in order to determine if a mistake was made. The mother had Type A blood, the father had Type AB blood, and the baby had Type O blood. Use the Punnett square to defend your answer to the following question: Did the hospital make a mistake and switch the baby? ____________arrow_forward
- A mother with blood type A has a child with blood type AB. Give all possible blood types for the father of this child. Group of answer choices O B, AB A, AB A, B, O A, B, AB, Oarrow_forwardCystic fibrosis (CF) is an autosomal recessive trait (a). Assume that Emily (who has CF) decides to have children with a man who does not have CF and who is not a carrier of CF. What are their genotypes, and what is the probability that they will have a child who is a carrier for CF?arrow_forwardHemophilia is inherited as a sex-linked recessive trait. A non-hemophilic man marries a non-hemophilic woman whose father had hemophilia. With respect to this information, indicate all possible genotypes their children could possibly have. Show ALL work using punnett squares.arrow_forward
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