The Barr body is the X chromosome in the cell that is expressed, whereas the other X chromosome is inactivated leading to only one active X chromosome in both males and females. Select one: True False

The Barr body is the X chromosome in the cell that is expressed, whereas the other X chromosome is inactivated leading to only one active X chromosome in both males and females. Select one: True False

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter7: Development And Sex Determination

Section: Chapter Questions

Problem 17QP: Equalizing the Expression of X Chromosome Genes in Males and Females How many Barr bodies would the...

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Concept explainers

Hematology

Hematology is the branch of biology. Hematology is the medical field that deals with the treatment of blood disorders and cancers, such as hemophilia, leukemia, lymphoma, and sickle-cell anemia. Hematologists and hematopathologists are medical professionals who specialize in illnesses of the blood and its components.

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The Barr body is the X chromosome in the cell that is expressed, whereas the other X
chromosome is inactivated leading to only one active x chromosome in both males and females.
Select one:
True
False

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The ABO blood type locus has been mapped on chromosome 9. A father who has type AB blood and a mother who has type O blood have a child with trisomy 9 and type A blood. Using this information, can you tell in which parent the nondisjunction occurred? Explain your answer
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