A genetic condition caused by the presence of an extra copy of chromosome 21.

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Multiple Choice

A genetic condition caused by the presence of an extra copy of chromosome 21.

Explanation:
Down Syndrome is a genetic condition caused by trisomy 21, meaning there is an extra copy of chromosome 21 in the cells. This additional chromosome alters development and leads to the characteristic features and potential health considerations associated with the condition. The other options describe different concepts: adaptive functioning refers to everyday life skills, developmental diversity covers variation in development without a specific chromosomal cause, and congenital heart conditions are birth heart defects that can occur independently of the extra chromosome.

Down Syndrome is a genetic condition caused by trisomy 21, meaning there is an extra copy of chromosome 21 in the cells. This additional chromosome alters development and leads to the characteristic features and potential health considerations associated with the condition. The other options describe different concepts: adaptive functioning refers to everyday life skills, developmental diversity covers variation in development without a specific chromosomal cause, and congenital heart conditions are birth heart defects that can occur independently of the extra chromosome.

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