The Following Events Occur If Human Cells Expressing HLA- I

question 10

Multiple Choice

The following events occur if human cells expressing HLA- I are mixed with anti- HLA- I, complement, and trypan blue. What step indicates the cells are HLA- I?

• A) Anti- HLA antibodies bind to HLAs on lymphocytes.
• B) Trypan blue enters the cells.
• C) Cells are damaged by complement.
• D) Enzyme is released from neutrophils.
• E) None of the answers are correct; the T cells are missing.

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Definitions:

Polygyny

A mating system in which one male mates with multiple females, often leading to complex social structures and competitive behaviors among males.

Female Behavior

A broad term describing the actions or reactions of female individuals of a species, often studied in the context of mating, parental care, and social interactions.

Predation Pressure

The influence or threat of predators in shaping the behavior, traits, and population dynamics of prey species.

Evolved Adaptation

A trait or behavior that has developed through the process of natural selection, giving an organism a reproductive or survival advantage in its environment.