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Cell Cycle Phases Quiz

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Questions and Answers

What happens during anaphase of mitosis?

Chromosomes align at the equator of the spindle

The centromere splits into two (correct)

The nuclear envelopes form around each nucleus

Chromosomes condense into chromatids

Which phase is characterized by chromosomes aligned at the equator of the spindle?

Telophase

Prometaphase

Prophase

Metaphase (correct)

What marks the beginning of prometaphase in mitosis?

Centromere splitting into two

Disassembly of the nuclear envelope (correct)

Chromosome alignment at the equator

Formation of the mitotic spindle

Which phase involves the formation of nuclear envelopes around each nucleus?

Telophase Signup and view all the answers

What is a key feature of metaphase in mitosis?

Chromosomes aligned at the equator Signup and view all the answers

During which phase of the cell cycle does DNA replication occur?

S phase Signup and view all the answers

What is the specialized resting state for cells in G1 that are not committed to DNA synthesis?

G0 phase Signup and view all the answers

How many phases can mitosis be divided into based on progress made in the overall nuclear division?

Five Signup and view all the answers

What happens to chromosome strands upon completion of DNA synthesis?

They are condensed into heterochromatin Signup and view all the answers

What is the main function of the gap between S phase and mitosis (G2 phase)?

Ensuring correct DNA replication Signup and view all the answers

Study Notes

Mitosis Phases

Anaphase is characterized by sister chromatids separating and moving to opposite poles of the cell.

Metaphase

Chromosomes are aligned at the equator of the spindle during metaphase.
A key feature of metaphase is the alignment of chromosomes at the center of the cell.

Prometaphase

The breakdown of the nuclear envelope marks the beginning of prometaphase.

Telophase

Nuclear envelopes form around each nucleus during telophase.

Cell Cycle

DNA replication occurs during the S phase of the cell cycle.
G0 phase is the specialized resting state for cells in G1 that are not committed to DNA synthesis.

Mitosis

Mitosis can be divided into four phases based on progress made in the overall nuclear division.

DNA Synthesis

Upon completion of DNA synthesis, chromosome strands are duplicated.

G2 Phase

The main function of the G2 phase is to prepare the cell for mitosis, allowing for cell growth and preparation for cell division.

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Description

Test your knowledge on the different phases of the cell cycle including G0 phase, S phase, and chromosome replication. Learn about the progression of cells from resting states to active phases and the process of DNA synthesis.