The Secondary Signal Needed for TH0 Helper Cells to Differentiate

question 56

Multiple Choice

The secondary signal needed for TH0 helper cells to differentiate into either TH1 cells or TH₂ cells is the cross-link between ________ (on TH0 helper cells) and ________ (on APC cell) .

• A) CD154; CD40
• B) MHC I; B7
• C) CD4; MHC II
• D) CD8; MHC I
• E) CD28; B7

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Definitions:

Persuasive Precedents

Decisions from other jurisdictions that, while not binding, may influence a court's decision in similar cases.

Regulations

Rules made by a government or regulatory body to control certain activities or behaviors.

Stare Decisis

A legal principle that obligates courts to follow historical cases when making a ruling on a similar current or future case.

Precedent

A court decision that furnishes authority for deciding later cases in which similar facts are presented.