What Is the Relationship Between a CGG Nucleotide Sequence on the X

question 47

Multiple Choice

What is the relationship between a CGG nucleotide sequence on the X chromosome and the development of Fragile X syndrome?

• A) Anyone who has a CGG nucleotide sequence repeating more than twice on the X chromosome will show symptoms of Fragile X syndrome.
• B) Any male who has a CGG nucleotide sequence repeating more than twice on the X chromosome will show symptoms of Fragile X syndrome.
• C) Anyone who has more than 50 repeats of the CGG sequences usually shows symptoms of Fragile X syndrome
• D) In general, the more repeats of the CGG nucleotide sequence, the more severe the children's cognitive impairments.

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Definitions:

Frontal Lobe

The part of the brain located at the front of each cerebral hemisphere, associated with complex cognitive functions and behavior control.

Stroke

A medical condition that occurs when the blood supply to part of the brain is interrupted or reduced, leading to brain tissue death and potentially resulting in physical and cognitive impairments.

Parietal Lobe

The parietal lobe is a region of the brain that plays a key role in processing sensory information from various parts of the body, spatial orientation, and language interpretation.

Temporal Lobe

A region of the cerebral cortex responsible for processing auditory information, as well as being involved in memory and speech.