A Person Suspected of Having Unipolar Depression Has a Smaller-Than-Normal

question 69

Multiple Choice

A person suspected of having unipolar depression has a smaller-than-normal hippocampus, although it produces a normal number of new neurons. This is:

• A) normal.
• B) unusual; those with unipolar depression usually have a smaller-than-normal hippocampus, causing it to produce a low number of new neurons.
• C) unusual; those with unipolar depression usually have a normal-sized hippocampus, causing it to produce a low number of new neurons.
• D) very unusual; those with unipolar depression usually have a normal-sized hippocampus, causing it to produce a normal number of new neurons.

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Definitions:

Sigma Complex

An intermediate in certain chemical reactions characterized by a covalent bond (sigma bond) between the reactant and a metal atom from the catalyst.

Nitroacetophenone

An organic compound containing both a nitro group and an acetyl group attached to a benzene ring, used in the synthesis of dyes and pharmaceuticals.

Bromination

A chemical reaction involving the addition of bromine (Br2) to organic compounds, typically to add bromine atoms or convert double bonds into Br-containing derivatives.

Bromobenzene

An aromatic bromine compound used frequently in organic synthesis, as a bromination precursor for making various organic products.