Human Heredity: Principles and Issues
11th Edition
ISBN: 9781305683952
Author: Michael Cummings
Publisher: Cengage Learning US
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Chapter 7, Problem 16QP
Summary Introduction
To determine: The reason which makes calico cats almost invariably female.
Introduction: Females have two X chromosomes due to which they have two copies of all the genes present on that chromosome whereas males carry only one copy of X chromosome due to which they have only one copy of the gene present on that chromosome. All female mammals contain a genetically inactive X chromosome which is known as the Barr body. The expression of gene products by the genes present on the X chromosome is equalized in both males and the females.
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Imagine that you are a clinical geneticist. Your colleague is an oncologist who wants your help explaining the basics of genetics to their patient, who will be undergoing genetic testing in the coming weeks for possible acute myeloid leukemia (AML) induced by the radiation she had several years ago for breast cancer.
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Provide an example of how you might explain these consequences in terms that patients might understand.
Chapter 7 Solutions
Human Heredity: Principles and Issues
Ch. 7.6 - Prob. 1EGCh. 7.6 - Prob. 2EGCh. 7 - As outlined in this chapter, sex can be defined at...Ch. 7 - As outlined in this chapter, sex can be defined at...Ch. 7 - Prob. 1QPCh. 7 - The Human Reproductive System Discuss and compare...Ch. 7 - Prob. 3QPCh. 7 - A Survey of Human Development from Fertilization...Ch. 7 - Prob. 5QPCh. 7 - Prob. 6QP
Ch. 7 - Prob. 7QPCh. 7 - How Is Sex Determined? The absence of a Y...Ch. 7 - Prob. 9QPCh. 7 - Mutations Can Uncouple Chromosomal Sex from...Ch. 7 - Prob. 11QPCh. 7 - Mutations Can Uncouple chromosomal Sex from...Ch. 7 - Prob. 13QPCh. 7 - Sex-Influenced and Sex-Limited Traits What method...Ch. 7 - Prob. 15QPCh. 7 - Prob. 16QPCh. 7 - Equalizing the Expression of X Chromosome Genes in...Ch. 7 - Equalizing the Expression of X Chromosome Genes in...Ch. 7 - Equalizing the Expression of X Chromosome Genes in...
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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY