A Group of Six Students Has Taken Samples of Their

question 28

Multiple Choice

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)Each of these students is heterozygous for this gene.

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Definitions:

Serotonin

A neurotransmitter that contributes to feelings of well-being and happiness.

Bulimia

An eating disorder characterized by episodes of binge eating followed by purging, aimed at preventing weight gain.

Genetic Predisposition

The increased likelihood or susceptibility to develop a particular disease or condition based on an individual's genetic makeup.

Business Model

A conceptual structure that supports the viability of a product or company and includes the purpose, target audience, revenue model, and details of financing, among other elements.