Which of the Following Mechanisms Does NOT Contribute to the Generation

question 8

Multiple Choice

Which of the following mechanisms does NOT contribute to the generation of a cytolytic T lymphocyte (CTL) response to a viral infection?

• A)Dendritic cells phagocytose infected cells or viral particles and present them to naive CD8⁺ T cells via the class I MHC pathway.
• B)Dendritic cells are infected with the virus and present viral peptides to naive CD8⁺ T cells via the class I MHC pathway.
• C)CTLs are directly activated by CD40L expressed on activated helper T cells through CD40.
• D)Helper T cells secrete cytokines,such as interleukin-2,that promote the proliferation and differentiation of CD8⁺ T cells.
• E)Helper T cells activate infected antigen-presenting cells (APCs)via the CD40 ligand-CD40 pathway,and the activated APCs present viral peptides to naive CD8⁺ T cells via the class I MHC pathway.

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Definitions:

Customer Demand

Refers to the quantity and type of goods or services that consumers are willing and able to purchase at various prices during a specified time period.

Bottom-Up Analysis

An analysis method that starts at a micro level, considering specific details and data, before building up to a broader perspective to understand a larger system or market.

Geographic Area

A specific portion of the Earth’s surface characterized by distinct boundaries, which can be defined by natural or artificial features.

Bottom-Up Analysis

An approach that starts with individual elements or components to develop broader insights or aggregate outcomes, often used in financial forecasting and market analysis.