Questions and Answers
What is the Metaphase Plate?
What occurs during G1 (gap 1)?
Metabolic activity and vigorous growth
What is Interphase?
The phase of the cell cycle where the cell prepares for division, including G1, S, and G2 phases.
What happens during the S (Synthetic) phase?
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What is the purpose of G2 (gap 2)?
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What does Mitotic Phase (M) encompass?
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What is Cytokinesis?
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Describe the events occurring during Prophase.
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What occurs during Metaphase?
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What takes place in Anaphase?
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What happens during Telophase?
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Define Mitosis.
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Study Notes
Cell Cycle and Mitosis Overview
- Metaphase Plate: Formed during metaphase, where chromosomes are positioned midway between the cell poles.
Stages of the Cell Cycle
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G1 (Gap 1): Characterized by intense metabolic activity and substantial growth.
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Interphase: The phase where the cell prepares for division; encompasses G1, S, and G2 phases.
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S (Synthetic): The stage in which DNA replication occurs to prepare for cell division.
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G2 (Gap 2): Involves the preparation for mitosis; includes further growth and the final preparations for division.
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Mitotic Phase (M): Comprises both mitosis and cytokinesis, resulting in cell division.
Mitosis Phases
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Prophase: Chromatin condenses into visible chromosomes; nucleoli disappear; centrioles move apart; the mitotic spindle forms.
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Metaphase: Chromosomes align at the cell's equatorial plane, centromeres are aligned precisely at the cell's equator.
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Anaphase: Centromeres split, enabling motor proteins to pull chromosomes toward opposite poles of the cell.
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Telophase: Chromosomes unravel back into chromatin; a new nuclear membrane forms from the Rough Endoplasmic Reticulum; nucleoli reappear.
Cytokinesis
- Cytokinesis: The process occurring after mitosis where the cytoplasm divides, resulting in two separate daughter cells.
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Description
This quiz covers the key concepts of the cell cycle and the stages of mitosis, including G1, S, G2 phases, and the detailed phases of mitosis such as prophase, metaphase, and anaphase. Test your understanding of how cells prepare for division and the processes involved in chromosome alignment and separation.