Fragile X Syndrome Is Caused by a Mutated Recessive Gene

question 155

True/False

Fragile X syndrome is caused by a mutated recessive gene for a brain enzyme, hexosaminidase A (Hex A).

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Definitions:

Compete

The act of striving against others for the purpose of achieving dominance, superiority, or an award.

Coevolve

The process by which two or more species reciprocally affect each other's evolution through natural selection.

Mutualistic

A type of symbiotic relationship where both organisms involved derive benefit from the association.

Indicator Species

Species whose presence and abundance in a community provide information about conditions in the community.