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Questions and Answers
What is the primary purpose of mitosis in a cell?
What is the primary purpose of mitosis in a cell?
During which phase of mitosis does the nuclear membrane disappear?
During which phase of mitosis does the nuclear membrane disappear?
In which phase of mitosis do chromatids align along the equatorial plane?
In which phase of mitosis do chromatids align along the equatorial plane?
What happens to the chromatids during anaphase?
What happens to the chromatids during anaphase?
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What is formed during telophase and cytokinesis?
What is formed during telophase and cytokinesis?
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What structure is only present in animal cells to assist in cell division?
What structure is only present in animal cells to assist in cell division?
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How does the number of chromosomes in daughter cells compare to the parent cell after mitosis?
How does the number of chromosomes in daughter cells compare to the parent cell after mitosis?
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What is the name of the region that holds sister chromatids together?
What is the name of the region that holds sister chromatids together?
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What distinguishes plant cell division from animal cell division?
What distinguishes plant cell division from animal cell division?
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An organism reproducing asexually typically produces offspring that are:
An organism reproducing asexually typically produces offspring that are:
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Study Notes
Aim and Do Now
- Aim: How can we describe mitosis and its phases?
- Do Now: If a cell is growing, why does it need to divide?
Mitosis
- Mitosis is the process where a cell separates its chromosomes into two identical sets in two nuclei.
- DNA replication precedes mitosis.
- Mitosis results in two diploid cells.
- The parent cell is identical to the two daughter cells.
- The number of chromosomes remains the same (e.g., 46 chromosomes in a human cell remain 46).
- It produces all cell types except sex cells
Phases of Mitosis
-
Interphase:
- Chromosomes replicate.
-
Prophase:
- Spindle fibers radiate from opposite poles.
- Nuclear membrane disappears.
-
Metaphase:
- Chromatids move to the central plate (middle).
- Chromatids align in the center.
-
Anaphase:
- Chromatids separate and are pulled apart.
- Chromatids move toward the poles.
-
Telophase:
- Nuclear membrane reappears, forming two nuclei.
- Cytoplasm splits (cytokinesis).
- The pinching in is known as the cleavage furrow
Plant vs Animal Cells
- Centrioles: Only in animal cells, they help form spindle fibers.
- Cell Plate: In plant cells, it forms during telophase, which helps divide the cell.
Summary Questions
- Which process is represented by the series of diagrams?
- Mitotic Cell Division
- If an organism reproduces asexually, its offspring will most likely be...
- Genetically identical to the parent.
- Normal mitotic cell division results in each daughter cell having...
- The same number and kinds of chromosomes as the parent cell.
- The chromatids of a double-stranded chromosome are held together at a region known as the...
- Centromere
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Description
Test your understanding of mitosis and its different phases with this quiz. Learn how cells divide and the importance of each stage in the cell cycle. Explore the process involved in producing identical diploid cells.
