Two Drops of Serum Are Added to One Drop of A₁

question 13

Multiple Choice

Two drops of serum are added to one drop of A₁ cells, and two drops are added to one drop of B cells; the two tubes are centrifuged. The tubes show reactivity when read macroscopically. This is an example of:

• A) forward grouping.
• B) reverse grouping.
• C) antibody screen.
• D) crossmatch.

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Definitions:

Duties

Obligations or responsibilities imposed on individuals or entities by law, contract, or morally expected roles.

Original Principal

The initial amount of money borrowed or invested, before the addition of interest or profits.

Principal's Instructions

Guidelines or orders given by a principal to an agent detailing how to perform specific tasks or duties.

Agent's Authority

The scope of power given to an agent to act on behalf of a principal in legal or business matters.