HUMAN BIOLOGY:CONC.+CURRENT..(LOOSE)
7th Edition
ISBN: 9780321862525
Author: Johnson
Publisher: PEARSON
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Chapter 19, Problem 9TY
Summary Introduction
Introduction:
Hemophilia is a genetic disorder in which the clotting of blood after a wound does not occur easily and properly and coagulation of blood takes time. The improper blood clotting can lead to excessive bleeding and infections over time and hence the death of an individual. This disease is also known as the royal disease as Queen Victoria was believed to have been a carrier of the disease.
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A man who is a carrier for cystic fibrosis marries a woman who is a carrier for cystic fibrosis. Respond to the question based upon this scenario.
What is the percentage probability that they will have a child who is a carrier?
a. 50%
b. 100%
c. 75%
d. 25%
Please Answer with reason:
2) What is the probability of two parents, both carriers of a defective recessive gene, producing a homozygous child (with each pregnancy)?
a. 0% c. 50%
b. 25% d. 75%
Hemophilia is a disease caused by a gene found on the X
chromosome. Therefore, it is referred to as a sex-linked disease.
The recessive allele causes the disease. A man with hemophilia
(xhy) marries a woman who is homozygous dominant (XHXH.
A. Illustrate using a Punnett square the probability that their children
will have the disease.
B. Will any of their children have the disease?
C. Predict the probabilities of their children having the disease.
Chapter 19 Solutions
HUMAN BIOLOGY:CONC.+CURRENT..(LOOSE)
Ch. 19 - If you might be a carrier of a gene for an...Ch. 19 - Prob. 2QCCh. 19 - Prob. 1CRCh. 19 - Prob. 2CRCh. 19 -
3. Distinguish between genotype and phenotype.
Ch. 19 - Describe the contributions of Mendel to the field...Ch. 19 - Explain how alterations of chromosome number and...Ch. 19 - Prob. 6CRCh. 19 - Prob. 7CRCh. 19 - Describe what is meant by sex-linked inheritance.
Ch. 19 -
9. Explain why lethal diseases caused by dominant...Ch. 19 - Prob. 10CRCh. 19 - All of the following statements about homologous...Ch. 19 - Prob. 2TYCh. 19 -
3. Which of the following statements correctly...Ch. 19 - Prob. 4TYCh. 19 - Prob. 5TYCh. 19 - Prob. 6TYCh. 19 - Prob. 7TYCh. 19 - Which of the following results in the separation...Ch. 19 - Prob. 9TYCh. 19 - Prob. 10TYCh. 19 - What tool is used to determine the probabilities...Ch. 19 - Prob. 12TYCh. 19 - What is the basis for the tremendous genetic...Ch. 19 - Prob. 14TYCh. 19 -
15. Which of the following events or processes...Ch. 19 -
1. What fraction of the offspring of two...Ch. 19 -
2. Why is it that the range of resting blood...Ch. 19 - Prob. 3AWKCh. 19 - Geneticists often study patterns of gene transfer...Ch. 19 - Prob. 5AWKCh. 19 - Prob. 6AWKCh. 19 - Nondisjunction during meiosis can lead to the...
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- A man with type A blood marries a woman with type A blood. Their first child has type O blood.What is the probability that their next child will have type A blood?A. 0.5 B. 0.25 C. 0 D. 0.75 E. 1.0arrow_forwardA woman with blood type AB marries a man with blood type B. They have a child of blood type A. What is the probability that their next child will have blood type o? Group of answer choices A. 50% B. 75% C. 25% D. 0arrow_forwardA man who is color-blind marries and has children by a woman who has normal color vision. The woman’s father had normal color vision but her mother was color-blind. Color-blindness is an X-linked recessive disorder. What are the chances that this man and woman will give birth to a color-blind girl (restated: of all the possible children, how many would be female and color-blind)? a. None b. 25% c. 50% d. 75% e. 100%arrow_forward
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