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Sect 11 Quiz Easy

Created by

@TenaciousNephrite186

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Questions and Answers

Which term refers to the proteins that help regulate the cell cycle by activating cyclin-dependent kinases (CDKs)?

CDKs

Mitogens

Cyclins (correct)

CKIs

What is the role of E2F in the eukaryotic cell cycle?

To inhibit CDK activity

To induce apoptosis

To enhance cyclin degradation

To promote the transition past the restriction point (correct)

What occurs if error-free DNA synthesis is not completed between the S and G2 phases?

Surveillance mechanisms arrest cell growth (correct)

The cell progresses to mitosis

The cell undergoes replication

Cyclin production increases

Which protein complex is involved in the regulation of the transition from metaphase to anaphase?

APC/C complex Signup and view all the answers

Which phase of the cell cycle directly follows the G1 phase?

S phase Signup and view all the answers

What do CKIs refer to in the context of the eukaryotic cell cycle?

Cyclin-dependent kinase inhibitors Signup and view all the answers

What is a potential outcome if surveillance mechanisms detect cell cycle errors?

The cell undergoes apoptosis or mutation Signup and view all the answers

Which of the following best describes the Start/Restriction point in the cell cycle?

A regulatory point controlling progression from G1 to S phase Signup and view all the answers

Study Notes

Eukaryotic Cell Cycle

The eukaryotic cell cycle (G1, S, G2, M) seems simple, but is highly regulated
Specific proteins, cellular readiness, and completion of previous stages are needed to initiate a new phase.
DNA synthesis must be error-free during the S to G2 transition
Cells with incomplete or damaged DNA are prevented from progressing via surveillance mechanisms.
Apoptosis or mutations can lead to cancer development.

Cell Cycle Phases

The cell cycle includes phases G1, S, G2, and M.

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Description

Explore the intricacies of the eukaryotic cell cycle, including the G1, S, G2, and M phases. Understand how proteins and cellular readiness regulate each stage and the importance of error-free DNA synthesis. Learn about the role of surveillance mechanisms in preventing mutations and cancer development.