Which of the Following Characteristics Is Associated with the B

question 49

Multiple Choice

Which of the following characteristics is associated with the B form of DNA?

• A) the sugars are located in the interior of the double helix
• B) the distance between base pairs along the axis of the helix is 8 Å
• C) the major and minor grooves are readily apparent
• D) the planes of the bases make about a 20 degree angle with the helix axis

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Definitions:

5-HTTLPR Gene

A variation in the genetic sequence of the serotonin transporter gene, which is thought to impact the efficiency of serotonin transport and has been associated with susceptibility to depression and anxiety disorders.

Allele

Alternate versions of a gene, which develop through mutation and exist at the same position on a chromosome.

Intervention Study

A research method involving the intentional action or treatment applied to study subjects to observe its effects, often used in medical and psychological studies.

Constructive

Serving a useful and positive purpose, often implying the building up or improvement of something.