Cell Division: Stages and Control Points

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What is the main function of cell division?

Regulate cell size

Break down nutrients for cellular metabolism

Generate energy for the cell

Produce new cells for growth and repair (correct)

What is the role of Cdc25 mutant in cell division?

Promotes cell division (correct)

Halts the cell cycle

Inhibits cell division

Controls DNA replication

Which enzyme is critically controlled by cyclin dependent kinases during the cell cycle?

Wee1 (correct)

Proteasome

Cdc25

Ubiquitin ligase

What complex conjugates onto proteins during cell division?

Ubiquitin Signup and view all the answers

Which process allows cdk to be activated at the right time for successful cell division?

Phosphorylation/dephosphorylation Signup and view all the answers

What is the distinctive feature of the Wee1 mutant in the context of cell division?

Controls cyclin:cdk complexes Signup and view all the answers

What is the role of cyclin dependent kinase inhibitors during the cell cycle?

Inducing transcription of inhibitors if conditions are not right for cell division Signup and view all the answers

Which protein is responsible for holding sister chromatids together during anaphase?

Cohesion complex Signup and view all the answers

What happens if chromosomes are not properly attached and under tension during metaphase?

Mitosis cannot proceed Signup and view all the answers

Cell Division: Stages and Control Points

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Questions and Answers

What is the main function of cell division?

What is the role of Cdc25 mutant in cell division?

Which enzyme is critically controlled by cyclin dependent kinases during the cell cycle?

What complex conjugates onto proteins during cell division?

Which process allows cdk to be activated at the right time for successful cell division?

What is the distinctive feature of the Wee1 mutant in the context of cell division?

What is the role of cyclin dependent kinase inhibitors during the cell cycle?

Which protein is responsible for holding sister chromatids together during anaphase?

What happens if chromosomes are not properly attached and under tension during metaphase?

Which checkpoint ensures that chromosomes are correctly attached before entering anaphase?

What can defects in genes required to pass the R point lead to?

Which protein is degraded for mitotic exit to occur?

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