In a Mixed Lymphocyte Reaction, T Cells from Individual a Make

question 9

Multiple Choice

In a mixed lymphocyte reaction, T cells from individual A make a robust response to antigen-presenting-cells from individual B, as long as the two individuals express different alleles of MHC molecules. Estimates indicate that up to 10% of the T cells from individual A may contribute to this response. If one performed this assay using responder T cells from a child and antigen-presenting cells from one parent, the result would be:

• A) A massive proliferative response made by the antigen-presenting cells of the parent
• B) A very weak response by the child's T cells, involving only 0.1% of their T cells
• C) The complete absence of any proliferative response by the child's T cells
• D) A robust cytolytic response that kills all of the parent's antigen-presenting cells
• E) A robust response by the child's T cells

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Definitions:

Chromosomes Become Visible

This refers to the stage in cell division where chromosomes condense and become visible under a microscope, typically during prophase of mitosis.

Mitosis

A type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus.

Interphase

The phase of the cell cycle in which a cell spends the majority of its time, engaging in growth and DNA replication.

Centriole Pair

A pair of small, cylindrical structures found in animal cells, crucial for the process of cell division by facilitating the assembly of the spindle fibers.