The Heritable Disorder Fragile X Syndrome, a Major Cause of Intellectual

question 14

Multiple Choice

The heritable disorder fragile X syndrome, a major cause of intellectual disability, is caused by

• A)production of enzymes that break the phosphate backbone.
• B)UV light.
• C)X-rays.
• D)the presence of an extra X chromosome in the sperm or egg.
• E)the expansion of a region of trinucleotide repeats.

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Definitions:

Universal

pertains to something that is applicable everywhere or in all cases; a concept, condition, or idea that is globally accepted.

Functionally Necessary

Pertains to elements or processes essential for the operation or survival of a system.

High Rank Positions

Statuses or roles within an organizational or societal hierarchy that carry significant influence, power, or authority.

Kingsley Davis

An American sociologist and demographer known for his work on population theory and the study of human societies.