AP Biology: Unit 4: Cell Communication and Cell Cycle

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Question 4 · Unit 4: Cell Communication and Cell Cycle · foundation

A signaling molecule binds a membrane receptor, which activates several intracellular proteins in sequence. What is this sequence called?A. Signal transductionB. DNA replicationC. TranslationD. Independent assortment

Question 12 · Unit 4: Cell Communication and Cell Cycle · standard

A cell has unrepaired DNA damage before DNA replication. Which response best helps prevent propagation of the damage?A. Bypass all checkpoints.B. Activate a checkpoint that delays cell-cycle progression while repair occurs.C. Immediately separate sister chromatids.D. Eliminate every DNA repair enzyme.

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