Genetic Analysis: An Integrated Approach (2nd Edition)
2nd Edition
ISBN: 9780321948908
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 20P
For each pedigree shown,
a. Identify which simple pattern of hereditary trans-mission (autosomal dominant, autosomal recessive, X-linked dominant, or X-linked recessive) is most likely to have occurred. Give genotypes for individuals involved in transmitting the trait.
b. Determine which other pattern(s) of transmission is/are possible. For each possible mode of transmission, specify the genotypes necessary for transmission to occur.
c. Identify which pattern(s) of transmission is/are impossible. Specify why transmission is impossible.
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Students have asked these similar questions
A. Color-blindness is a recessive, sex-linked disorder in humans. A color-
blind man has a child with a woman who is a carrier of the disorder.
KEY: X= normal vision XC = color-blindness
2. Illustrate using a Punnett square the probability of having children
who will have normal vision and children who will be color-blind.
Guide Questions:
a. What is the genotype of the male?.
b. What is the genotype of the female?
c. What is the chance that the child will be color-blind?
d. What is the chance that a daughter will be color-blind?
e. What is the chance that a son will be color-blind?
Ill.siven the following pedigree below, use Punnett squares for each of the following possibilities: a) X-
linked dominant, b) X-linked recessive, c) Autosomal dominant and d) Autosomal recessive in order
to determine what is the mode of transmission of this trait. Disease allele = Xª, x², A or a depending
on mode of transmission of the disease respectively. Unaffected X chromosome = X
*Homozygous unaffected/No
1
*2
carrier=Normal
II
1
*4
1
2 3
6.
7 8
a) X-linked dominant
11x12
b) X-linked recessive I 1 x1 2
c) Autosomal dominant 11x12
d) Autosomal recessive I1x12
IV.
Based on your analysis what is the mode of transmission for this disease?
O+
While studying of the family tree with history of hypertrichosis (hyper hirsutism of
the ear) this sign was founded only in the men and it was inherited from father to
the son. Define the type of hypertrichosis inheritance?
Select one:
a. Y-linked
b.
Autosomal-recessive
O c. Autosomal-dominant
d. Recessive, X-linked
e. Dominant, X-linked
Chapter 3 Solutions
Genetic Analysis: An Integrated Approach (2nd Edition)
Ch. 3 - Examine the following diagrams of cells from an...Ch. 3 - Our closest primate relative, the chimpanzee, has...Ch. 3 -
3. In a test of his chromosome theory of...Ch. 3 - Cohesion between sister chromatids, as well as...Ch. 3 - 5. The diploid number of the hypothetical animal...Ch. 3 - 6. An organism has alleles R1 and R2 on one pair...Ch. 3 - Explain how the behavior of homologous chromosomes...Ch. 3 - 8. Suppose crossover occurs between the homologous...Ch. 3 -
9. Alleles A and a are on one pair of autosomes,...Ch. 3 - Prob. 10P
Ch. 3 - Describe the role of the following structures or...Ch. 3 - A womans father has ornithine transcarbamylase...Ch. 3 - In humans, hemophilia A (OMIM 306700) is an...Ch. 3 -
14. A wild-type male and a wild-type female...Ch. 3 - 15. A woman with severe discoloration of her tooth...Ch. 3 - 16. In a large metropolitan hospital, cells from...Ch. 3 - In cats, tortoiseshell coat color appears in...Ch. 3 - 18. The gene causing Coffin–Lowry syndrome (OMIM...Ch. 3 - 19. Four eye-color mutants in Drosophila—apricot,...Ch. 3 - 20. For each pedigree shown,
a. Identify which...Ch. 3 - 21. Use the blank pedigrees provided to depict...Ch. 3 - 22. Figure 3.22 (page 89) illustrates reciprocal...Ch. 3 - 23. In fruit flies, yellow body (y) is recessive...Ch. 3 - 24. In a species of fish, a black spot on the...Ch. 3 - LeschNyhan syndrome (OMIM 300322) is a rare...Ch. 3 - 26. In humans, SRY is located near a...Ch. 3 - 27. In an 1889 book titled Natural Inheritance...Ch. 3 - 30. Drosophila has a diploid chromosome number of...Ch. 3 - 29. A wild-type Drosophila male and female are...Ch. 3 - 28. In Drosophila, the X-linked echinus eye...Ch. 3 - 31. While examining a young tortoiseshell cat, you...Ch. 3 - 32. Redgreen color blindness in humans is...
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