Biology
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Boundless Biology
Modern Understandings of Inheritance
Biology Textbooks Boundless Biology Modern Understandings of Inheritance
Biology Textbooks Boundless Biology
Biology Textbooks
Biology

Section 2

Chromosomal Basis of Inherited Disorders

Book Version 32
By Boundless
Boundless Biology
Biology
by Boundless
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3 concepts
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Disorders in Chromosome Number

Aneuploidy, an abnormal number of chromosomes in a cell, is caused by nondisjunction, or the failure of chromosomes to separate at meiosis.

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Chromosomal Structural Rearrangements

Structural rearrangements of chromosomes include both inversions and translocations, which may have detrimental effects on an organism.

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X-Inactivation

The presence of extra X chromosomes in a cell is compensated for by X-inactivation in which all but one X chromosome are silenced.

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