Why cells divide
Cell Cycle
Mitosis
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100
What is one of the reasons cells divide?
to remain small
to grow the organism
to repair/replace cells
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What are the three stages of the cell cycle?
interphase, mitosis and cytokinesis
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What is the main purpose of mitosis?
To produce two identical daughter cells for growth and repair.
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What is the primary purpose of meiosis?
To produce gametes (sperm and eggs) for sexual reproduction.
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What is the main difference between mitosis and meiosis?
Mitosis results in two identical cells, while meiosis results in four genetically diverse cells.
200
Name the two types of cell division
mitosis and meiosis
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During which phase of the cell cycle does the cell spend most of its life?
Interphase
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List the four stages of mitosis.
Prophase, metaphase, anaphase, and telophase.
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How many rounds of division occur in meiosis?
Two rounds of division.
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Which process is involved in asexual reproduction?
Mitosis
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What is the term for the process by which a cell's DNA is copies before it divides?
DNA replication
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What happens during interphase?
The cell grows and copies DNA
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What happens to the chromosomes during metaphase?
Chromosomes line up along the middle of the cell.
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How many chromosomes does a human gamete have after meiosis?
23 chromosomes.
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How many chromosomes do daughter cells have after mitosis compared to meiosis?
Daughter cells from mitosis have the same number of chromosomes as the parent cell; meiosis produces cells with half the number.
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As organisms grow and repair themselves, what happens to the number of cells?
They increase
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What holds the sister chromatids together?
The centromere
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What is cytokinesis?
The process that divides the cytoplasm of a parent cell into two daughter cells.
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What does PMAT stand for?
Prophase, Metaphase, Anaphase, and Telophase
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What phase is shown?
Prophase
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What type of plant cells did we look at yesterday?
Onion cells
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What are the thread called that form during prophase?
Spindle fibers
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What is the final product of mitosis?
two identical diploid daughter cells
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What phase is shown?
Metaphase
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Where does mitosis happen in the cell?
Nucleus