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18 June, 17:42

The human disease phenylketonuria has symptoms that include mental problems, chronic skin rashes, and reduced hair and skin pigmentation. Phenylketonuria can be caused by a mutation in a single gene.

Phenlyketonuria is an example of pleiotropy. Based on this, it can be concluded that pleiotropy occurs when

A.

a single gene influences multiple traits.

B.

a trait is influenced by both genes and environment.

C.

a trait is not influenced by genes.

D.

a single trait is influenced by many genes.

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  1. 18 June, 18:48
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    The human disease phenylketonuria has symptoms that include mental problems, chronic skin rashes, and reduced hair and skin pigmentation. Phenylketonuria can be caused by a mutation in a single gene.

    Phenlyketonuria is an example of pleiotropy. Based on this, it can be concluded that pleiotropy occurs when a single gene influences multiple traits.
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