9. In man, brown eyes (B) are dominant over blue eyes (b) and normal skin pigmentation (N) is dominant over albinism (n). A brown eyed, albino man whose mother had blue eyes and normal skin pigmentation and whose father was albino marries a blue eyed, normally pigmented woman whose father had brown eyes and was albino. (a) What is the woman's genotype? (b) What proportion of the couple's offspring would be expected to have brown eyes and normal skin pigmentation? (c) What proportion of the couple's offspring would be expected to have genotype Bbnn? (d) If the man were to marry a woman with the same genotype as his present father-in-law, what proportion of the offspring would be expected to have blue eyes and be albino? (e) If the woman were to marry a man with the same genotype as her present mother-in-law, what proportion of the offspring would be expected to be of genotype bbNN?

9. In man, brown eyes (B) are dominant over blue eyes (b) and normal skin pigmentation (N) is dominant over albinism (n). A brown eyed, albino man whose mother had blue eyes and normal skin pigmentation and whose father was albino marries a blue eyed, normally pigmented woman whose father had brown eyes and was albino. (a) What is the woman's genotype? (b) What proportion of the couple's offspring would be expected to have brown eyes and normal skin pigmentation? (c) What proportion of the couple's offspring would be expected to have genotype Bbnn? (d) If the man were to marry a woman with the same genotype as his present father-in-law, what proportion of the offspring would be expected to have blue eyes and be albino? (e) If the woman were to marry a man with the same genotype as her present mother-in-law, what proportion of the offspring would be expected to be of genotype bbNN?

Name: 9. In man, brown eyes (B) are dominant over blue eyes (b) and normal
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Description: 9. In man, brown eyes (B) are dominant over blue eyes (b) and normal skinpigmentation (N) is dominant over albinism (n). A brown eyed, albino man whosemother had blue eyes and normal skin pigmentation and whose father was albinomarries a blue eyed,

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter5: The Integumentary System

Section: Chapter Questions

Problem 4ILQ: This ABC video follows the story of a pair of fraternal African-American twins, one of whom is...

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1) Suppose thatt everyone in your family (bloodline) has attached earlobes. Do you know with certainty what your gentype is? a) Your spouse also has attached earlobes, but both your children have unattached earlobes. What is your genotype, and what is your spouse's genotype?
(6.) A woman claims that a certain man is the father of her daughter; however, the man denies this claim. The daughter is red-green color-blind, but neither the mother nor the alleged father is color-blind. Who is telling the truth and why?
1. Does albinism follows a dominant or recessive inheritance trait pattern? 2. What cells and protein is responsible for adding "color" to animals, e.g. fur color, eye color, skin color, etc?
2. The common grandfather of two first cousins has hereditary hemochromatosis, a recessive condition causing an abnormal buildup of iron in the body. Neither ofthe cousins has the disease nor do any of their relatives.a. If the first cousins had a child, what is the chancethat the child would have hemochromatosis?Assume that the unrelated, unaffected parents ofthe cousins are not carriers.b. How would your calculation change if you knewthat 1 out of every 10 unaffected people in the population (including the unrelated parents of thesecousins) was a carrier for hemochromatosis?
30. If the father has blood type AB, the mother has blood type B, a child with blood type A which of the following statements is correct about the mother? (A) She contributes an IB allele, which is recessive to the father's IA allele. (B) She contributes an i allele which is recessive to the father's IA allele. (C) She contributes an IB allele which is codominant to the father's IA allele. (D) She contributes an allele that is codominant to the father's IB allele. (E) She is homozygous for the IB allele.
6. A woman and a man, both with normal clotting blood, have a son who has hemophilia. Both of their daughtersare normal. (Note: Assume all possibilities in the children are represented.)a. What pattern of inheritance is this?b. What is the genotypes of the parents?c. If they decide to have another child, what is the chance it will be a boy who has hemophilia? A girl whohas hemophilia?
3. Red-green color blindness (b) is a recessive sex-linked trait. A colorblind male marries a normal female. Their daughter is colorblind. a)What are the genotypes of both parents and the daughter? b) Can a colorblind father have daughters who are not colorblind? Explain.
3. Albinism in humans is controlled by a recessive gene (c). From marriages between two normally pigmented carriers (Cc), what is the probability of having a normal child? An albino? Assume that from such a marriage (Cc x Cc) four children will be produced. (@ What is the probability that all four will be normal? (b) Three will be normal and one albino? (c) Two normal and two albino?
3) if a normal sighted male has children with a carrier woman a) what proportion of their daughters will have normal colour vision? b) what proportion of their sons will be colour blind?
5.Albinism, lack of pigmentation in humans, results from an autosomal recessive gene Two parents with normal pigmentation have an albino child.(a) What is the probability that their next child will be albino?(b) What is the probability that their next child will be an albino girl?(c) What is the probability that their next three children will be albino?
In humans, normal skin color (A) is dominant over albino (a). An albino man marries a normal woman whose mother was an albino and whose father has normal skin color. What is the genotype of the man and the woman? What proportion of their children would be expected to be both normal skin pigmentation and have the trait for albino?
6. Hemophilia causes severe bleeding from minor wounds. The blood is unable to clot properly because one of the factors necessary for clotting is missing. Hemophilia is an inherited sex-linked recessive disorder transmitted on the X chromosome by mothers to their sons. i) A woman inherited the gene for hemophilia from her mother and marries a man who iş normal and has no hemophilia. What is the possibility that her children can have hemophilia?