A Population of T Cells Was Stimulated to Proliferate in Response

question 3

Multiple Choice

A population of T cells was stimulated to proliferate in response to a particular antigen.A sample of 1000 stimulated cells was analyzed by fluorescence-activated cell sorting (FACS) for total DNA content.Of the 1000 cells,400 had a 2n amount of DNA,200 had a 4n amount of DNA,and the remaining 400 cells had between a 2n and 4n amount of DNA.Additional immunofluorescence analysis revealed that 200 of the cells were in various stages of M phase and that M phase lasted 2 hours.What is the total length of the cell cycle?

• A)8 hours
• B)12 hours
• C)18 hours
• D)20 hours
• E)24 hours

Understand the relationship between market price, individual willingness to pay, and consumer surplus.

Comprehend the relationship between market price, costs of production, and producer surplus.

Analyze the changes in surplus and deadweight loss resulting from market underproduction or overproduction.

Assess how price changes affect surplus and market efficiency.

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Definitions:

Immediate Reinforcement

The immediate reward or punishment following a behavior, which influences the likelihood of that behavior being repeated.

Successful Occasion

Represents a situation or event where the intended or desired outcomes are achieved effectively.

Short Delay

A brief period of waiting or postponement before an action or process is initiated or continued.

Habituated

A process by which an individual becomes accustomed to a stimulus or environment through repeated exposure, leading to a decrease in response.