Use the Following Information to Answer the Next Few Questions

question 40

Multiple Choice

Use the following information to answer the next few questions.
A group of six students has taken samples of their own cheek cells, purified the DNA, and used a restriction enzyme known to cut at zero, one, or two sites in a particular gene of interest.
-Analysis of the data obtained shows that two students each have two fragments, two students each have three fragments, and two students each have one only. What does this demonstrate?

• A) Each pair of students has a different gene for this function.
• B) The two students who have two fragments have one restriction site in this region.
• C) The two students who have two fragments have two restriction sites within this gene.
• D) The students with three fragments are said to have "fragile sites."
• E) Each of these students is heterozygous for this gene.

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Definitions:

DRD4

A gene associated with the dopamine receptor D4, involved in the neurotransmission system and linked to behaviors such as novelty seeking.

SSRI

Selective Serotonin Reuptake Inhibitors, a class of medications commonly used to treat depression and anxiety disorders by increasing the levels of serotonin in the brain.

Genome-wide Association Study

A method in genetics research that looks for associations between specific genetic variations and particular diseases or traits across a wide portion of the genome.

Personality Attributes

Personality attributes are characteristics or qualities that define an individual's distinctive patterns of thinking, feeling, and behaving.