When an individual gets an extra chromosome from a parent the resulting condition is called ________.

Disjunction

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Nondisjunction

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Aneuploidy

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Polyploidy

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Solution

The correct option is C
Aneuploidy

A condition where an individual gets an extra chromosome from the parent is called aneuploidy. These cases usually arises due to the nondisjunction of chromosome during the gamete formation. Down syndrome is an example of aneuploidy where an extra copy of chromosome 21 is present.

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