Which Molecule Is the Major Excitatory Neurotransmitter in the Brain

question 66

Multiple Choice

Which molecule is the major excitatory neurotransmitter in the brain?

• A) GABA
• B) glutamate
• C) serotonin
• D) dopamine
• E) acetylcholine

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Definitions:

XXX Female

Typically refers to an individual with a rare genetic condition featuring an extra X chromosome, resulting in a 47,XXX karyotype.

Gamete Formation

The process of forming gametes (sex cells such as sperm and eggs) through meiosis, in which the number of chromosomes is halved to ensure genetic diversity.

XYY

Refers to a chromosomal arrangement where an individual, typically male, has an extra Y chromosome, leading to the genotype 47,XYY.

Nondisjunction

An error in cell division that results in daughter cells with an abnormal number of chromosomes, which can lead to genetic disorders.