A Lymphocyte Exhibits the Following Markers: CD19,IgM,IgD

question 21

Multiple Choice

A lymphocyte exhibits the following markers: CD19,IgM,IgD.What is its likely identity?

• A) Double-negative T cell
• B) Immature B cell
• C) Double-positive T cell
• D) Mature B cell

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Definitions:

Serotonin Agonist

A type of drug that activates serotonin receptors in the brain, mimicking the effects of serotonin to increase its action in the nervous system.

Serotonin Antagonist

A type of drug that works by blocking serotonin receptors, affecting mood, appetite, and other functions.

Motor Neurons

Nerve cells that transmit impulses from the brain or spinal cord to muscles or glands, causing them to act.

Sensory Neurons

Specialized neurons responsible for converting external stimuli from the organism's environment into internal electrical impulses.