Cell Cycle: Significant Events and Phases

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What event occurs during cytokinesis in the cell cycle?

Formation of spindle fibers

Disappearance of nucleolus

Distribution of organelles and macromolecules (correct)

Attachment of chromosomes into the spindle fibers

Which phase of the cell cycle involves the synthesis of proteins, lipids, and carbohydrates?

Quiet Phase (G0)

Gap 2 (G2)

Synthesis (S)

Gap 1 (G1) (correct)

What is the main function of the checkpoints in the cell cycle?

Halting protein synthesis

Preventing DNA synthesis

Promoting apoptosis

Ensuring chromosomes are properly replicated and distributed (correct)

Which event marks the beginning of mitosis proper in the cell cycle?

Coiling of DNA Signup and view all the answers

During which phase of the cell cycle does apoptosis occur?

Quiet Phase (G0) Signup and view all the answers

What is the role of cleavage furrow in cell division?

Separation of the two daughter cells Signup and view all the answers

What is the main function of the DNA Damage Checkpoint?

Temporarily pauses the cell cycle for DNA repair Signup and view all the answers

Which protein is involved in the Apoptosis Checkpoint?

Survivins Signup and view all the answers

What is the function of Telomerase in relation to telomeres?

Prevents telomere shortening Signup and view all the answers

Why do most cancer cells arise according to the text?

Mutation leading to improper protein production Signup and view all the answers

What is the role of Spindle Assembly Checkpoint in cell division?

Ensures chromosomes are properly attached to spindle fibers Signup and view all the answers

How does the Apoptosis Checkpoint affect cell fate?

Causes cells to undergo apoptosis if survivins message is not received Signup and view all the answers

What is the role of caspases in apoptosis?

Destroy enzymes that replicate or repair DNA Signup and view all the answers

Which process is responsible for dismantling cell remnants or blebs after apoptosis?

Cytokinesis Signup and view all the answers

What is the characteristic chromosome number of cells produced by Meiosis II?

23 chromosomes Signup and view all the answers

During which phase of Meiosis does synapsis occur?

Prophase Signup and view all the answers

What effect does apoptosis have on a cell's ability to adhere to other cells?

It abolishes the cell's activity to adhere to other cells Signup and view all the answers

What is the primary function of meiosis in cell division?

Producing gametes with unique genetic information Signup and view all the answers