The Antigen Specificity of a B Cell Is Determined

question 13

Multiple Choice

The antigen specificity of a B cell is determined:

• A) after interaction with antigen.
• B) by H- and L-chain variable-region sequences.
• C) only by the L chain.
• D) after isotype switching.

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Definitions:

Myelin

A fatty substance that surrounds and insulates the axons of some neurons, facilitating faster electrical impulse transmission.

Dendrites

Extensions of neurons that receive signals from other neurons or sensory receptors, playing a key role in the communication within the brain.

Axons

Long, slender projections of nerve cells that transmit electrical impulses away from the neuron's cell body.

Somas

The cell bodies of neurons, containing the nucleus and cytoplasm, which are essential for the neuron's function and health.