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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?
- To increase the cell's energy production
- To allow the cell to perform cellular respiration
- To separate chromosomes into two identical sets (correct)
- To produce gametes for sexual reproduction
Which phase of mitosis involves the alignment of chromatids along the central plate?
Which phase of mitosis involves the alignment of chromatids along the central plate?
- Metaphase (correct)
- Anaphase
- Prophase
- Telophase
During which phase of mitosis does the nuclear membrane reappear?
During which phase of mitosis does the nuclear membrane reappear?
- Prophase
- Anaphase
- Telophase (correct)
- Interphase
What is a key difference between plant and animal cells during mitosis?
What is a key difference between plant and animal cells during mitosis?
Which structure holds the chromatids of a double-stranded chromosome together?
Which structure holds the chromatids of a double-stranded chromosome together?
If a parent cell contains 46 chromosomes, how many chromosomes will each daughter cell have after mitosis?
If a parent cell contains 46 chromosomes, how many chromosomes will each daughter cell have after mitosis?
What primarily happens during cytokinesis?
What primarily happens during cytokinesis?
Which of the following describes gametogenesis?
Which of the following describes gametogenesis?
How many phases are there in mitosis?
How many phases are there in mitosis?
What occurs during the prophase of mitosis?
What occurs during the prophase of mitosis?
Flashcards
Mitosis
Mitosis
A cell process where a cell's nucleus separates its chromosomes into two identical sets.
Interphase
Interphase
The phase of the cell cycle before mitosis where the chromosomes replicate.
Prophase
Prophase
The first stage of mitosis, where spindle fibers form and the nuclear membrane disappears.
Metaphase
Metaphase
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Anaphase
Anaphase
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Telophase
Telophase
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Cytokinesis
Cytokinesis
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Chromosome
Chromosome
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Daughter cell
Daughter cell
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Asexual reproduction
Asexual reproduction
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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: The process where a cell separates the chromosomes in its nucleus into two identical sets in two nuclei.
- DNA replication occurs before mitosis.
- Result of mitosis: Two diploid cells
Mitosis Characteristics
- Parent cell is identical to the 2 daughter cells.
- 46 chromosomes in parent cell = 46 chromosomes in daughter cells.
- 2n (diploid) parent cell = 2n (diploid) daughter cells.
- Mitosis creates all cell types except sex cells.
Phases of Mitosis
- Interphase: Chromosome replicates.
- Prophase: Spindle fibers radiate from opposite poles, the nuclear membrane disappears.
- Metaphase: Chromosomes move to the central plate (middle) and align in the center.
- Anaphase: Chromatids separate and move toward the poles.
- Telophase: Nuclear membrane reappears forming two nuclei, cytoplasm splits (cytokinesis), the pinching in is known as a cleavage furrow. Plant cells have a cell plate instead of a cleavage furrow.
Plant vs Animal Cells in Mitosis
- Animal cells: Centrioles help the formation of spindle fibers.
- Plant cells: A cell plate forms during telaphase, not a cleavage furrow.
Identifying Mitosis Stages from Diagrams
- Identifying the different stages of mitosis from diagrams of the process. (This requires the diagrams).
Asexual Reproduction
- If an organism reproduces asexually, its offspring will most likely be genetically identical to the parent.
Mitosis and Chromosome Number
- Normal mitotic cell division results in daughter cells having the same number and kinds of chromosomes as the parent cell.
Centromere
- The centromere is the region where chromatids of a double-stranded chromosome are held together.
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Description
Explore the fascinating process of mitosis through this quiz. Learn about the different phases of mitosis, the characteristics of parent and daughter cells, and the importance of cell division in growth. Test your understanding of this critical biological process!
