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Without Prior Exposure to an Antigen, Which Cells Are Able

question 1

Multiple Choice

Without prior exposure to an antigen, which cells are able to destroy some types of tumor cells and some virus-infected cells?

Definitions:

Required Condition

A prerequisite or necessary condition that must be met for a certain procedure or operation to be carried out correctly.

Normally Distributed

Characterizes a probability distribution where the arrangement is mirror-imaged around the mean, suggesting that occurrences are more common near the mean than far from it.

Population Variances

A measure of the spread of a population's data points, representing the average of the squared differences from the population mean.

Null Hypothesis

A statement in statistics that suggests no significant difference or effect; it serves as a default assumption to be tested against an alternative hypothesis.