What Two Cell Types Are Mainly Responsible for Graft Rejection

question 44

Multiple Choice

What two cell types are mainly responsible for graft rejection?

• A) B cells and helper T cells
• B) natural killer cells and B cells
• C) marcrophages and natural killer cells
• D) cytotoxic T cells and helper T cells
• E) B cells and plasma cells

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Definitions:

Watson And Jones

Presumably refers to researchers in psychology, possibly related to studies on conditioning, behavior, or social learning, but the specific reference may require further context.

Discriminative Stimulus

A stimulus that signals whether a certain response or behavior is likely to be rewarded, ignored, or punished.

Unconditioned Stimulus

In classical conditioning, a stimulus that naturally and automatically triggers a response without prior learning.

White Rat

Often used in psychological experiments, a specific breed of rat distinguished by its albino coloration.