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Questions and Answers
What is the main function of cell division?
What is the main function of cell division?
What is the total number of chromosomes in haploid (n) human cells?
What is the total number of chromosomes in haploid (n) human cells?
What are somatic cells and how are they produced?
What are somatic cells and how are they produced?
What is the structure that joins two identical sister chromatids?
What is the structure that joins two identical sister chromatids?
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In which phase of the cell cycle does DNA replication occur?
In which phase of the cell cycle does DNA replication occur?
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What is the purpose of the G1 phase in the cell cycle?
What is the purpose of the G1 phase in the cell cycle?
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Which type of cell division involves a single cell dividing to produce 2 new identical daughter cells?
Which type of cell division involves a single cell dividing to produce 2 new identical daughter cells?
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Which phase marks the period during which DNA synthesis or replication takes place?
Which phase marks the period during which DNA synthesis or replication takes place?
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What is the significance of the M phase in the cell cycle?
What is the significance of the M phase in the cell cycle?
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In a human cell, what is the duration of cell division proper compared to interphase?
In a human cell, what is the duration of cell division proper compared to interphase?
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Study Notes
Cell Division Overview
- Main function of cell division is to allow growth, tissue repair, and reproduction in organisms.
- Somatic cells are body cells that undergo mitosis to produce more identical cells for growth and tissue maintenance.
Chromosomal Information
- Haploid (n) human cells contain a total of 23 chromosomes, which is half the number of chromosomes found in diploid cells.
Cell Cycle and Phases
- The structure that joins two identical sister chromatids is called the centromere.
- DNA replication occurs during the S phase (Synthesis phase) of the cell cycle.
- G1 phase (Gap 1 phase) serves the purpose of cell growth, nutrient assessment, and preparation for DNA synthesis.
Types of Cell Division
- Mitosis is the type of cell division that involves a single cell dividing to produce two new identical daughter cells.
- The M phase (Mitotic phase) signifies the period of cell division—necessary for genetic consistency in daughter cells.
Duration of Cell Cycle Phases
- Cell division proper has a significantly shorter duration compared to interphase, which includes G1, S, and G2 phases, where the cell prepares for division.
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Description
This quiz covers the events associated with the cell cycle, binary fission, and mitosis cell division. It includes definitions related to cell division and the cell cycle.
