If the DNA Sequences of a Particular Gene in a Skin

question 23

Multiple Choice

If the DNA sequences of a particular gene in a skin cell and a liver cell were compared, there would be

• A) a small number of differences.
• B) a very large number of differences.
• C) so many differences that it would be impossible to identify corresponding genes in skin and liver cells.
• D) no differences.

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Definitions:

Depressed Mood

A persistent feeling of sadness, hopelessness, or a lack of interest or pleasure in activities, characteristic of depression.

Major Depressive Disorder

A mood disorder featuring major depressive episodes (episodes of depressed mood or loss of pleasure in life that lasts at least 2 weeks).

Pleasure

A broad class of mental states that humans and other animals experience as positive, enjoyable, or worth seeking.

2 Weeks

A time period equivalent to fourteen days.