Clonal Deletion That Removes Lymphocytes That Recognize Any Self Antigens

question 40

Multiple Choice

Clonal deletion that removes lymphocytes that recognize any self antigens that are present is known as

• A)positive selection.
• B)negative selection.
• C)neutralization.
• D)none of the choices

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Definitions:

Tropomyosin

A protein that runs along the length of the actin filament in muscle fibers and, along with troponin, regulates muscle contraction.

Sarcoplasmic Reticulum

A network of membranes found within muscle cells that stores and releases calcium ions, aiding in muscle contraction.

Sarcolemma

The cell membrane surrounding a muscle fiber, playing a crucial role in muscle contraction.

Acetylcholine Receptors

Protein receptors located in the neuro-muscular junction and various parts of the nervous system that bind acetylcholine, facilitating neurotransmission.