Podcast
Questions and Answers
During which phase do the centrioles complete their migration to the poles?
During which phase do the centrioles complete their migration to the poles?
What occurs during anaphase?
What occurs during anaphase?
What is the position of the chromosomes during metaphase?
What is the position of the chromosomes during metaphase?
Which phase ensures that each daughter cell gets identical sets of chromosomes?
Which phase ensures that each daughter cell gets identical sets of chromosomes?
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What happens to chromosomes during telophase?
What happens to chromosomes during telophase?
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What is the long period of the cell cycle between one mitosis and the next called?
What is the long period of the cell cycle between one mitosis and the next called?
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During which phase of interphase does the cell duplicate its chromosomes?
During which phase of interphase does the cell duplicate its chromosomes?
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Which of the following is NOT one of the phases of mitosis?
Which of the following is NOT one of the phases of mitosis?
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What happens during the G1 phase of interphase?
What happens during the G1 phase of interphase?
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Which phase is the first stage of mitosis?
Which phase is the first stage of mitosis?
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Which structure attaches spindle fibers to sister chromatids?
Which structure attaches spindle fibers to sister chromatids?
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During which process does the division of the cytoplasm occur?
During which process does the division of the cytoplasm occur?
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Which phase of interphase involves the cell 'double checking' duplicated chromosomes for errors?
Which phase of interphase involves the cell 'double checking' duplicated chromosomes for errors?
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What is cytokinesis?
What is cytokinesis?
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During which stage do chromosomes align at the metaphase plate?
During which stage do chromosomes align at the metaphase plate?
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What significant event occurs during prometaphase?
What significant event occurs during prometaphase?
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Which phase marks the beginning of cytokinesis?
Which phase marks the beginning of cytokinesis?
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What happens during the metaphase to anaphase transition?
What happens during the metaphase to anaphase transition?
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How does cytokinesis occur in animal cells?
How does cytokinesis occur in animal cells?
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In which phase does DNA replication occur?
In which phase does DNA replication occur?
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During which phase do the centrosomes move to opposite poles of the cell?
During which phase do the centrosomes move to opposite poles of the cell?
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Which phase involves the complete separation of sister chromatids?
Which phase involves the complete separation of sister chromatids?
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What is the main event of the telophase stage?
What is the main event of the telophase stage?
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Study Notes
Cell Division and the Cell Cycle
- Cell division involves two phases: mitosis (division of the nucleus) and cytokinesis (division of the cytoplasm)
Phases of Mitosis
- Interphase: long period of the cell cycle between one mitosis and the next, includes G1, S, and G2 phases
- Prophase: chromosomes condense and become visible, centrioles form and move towards opposite ends of the cell, nuclear membrane dissolves, and mitotic spindle forms
- Prometaphase: nuclear envelope breaks down, microtubules attach to kinetochores on chromosomes
- Metaphase: chromosomes align at the metaphase plate, an imaginary plane that bisects the cell
- Metaphase to Anaphase Transition: sister chromatids separate and begin to move to opposite poles of the cell
- Anaphase: sister chromatids separate completely and are pulled to opposite poles of the cell
- Telophase: nuclear envelope reforms around each set of chromosomes, chromosomes decondense, and spindle fibers disappear
- Cytokinesis: cytoplasm divides, forming two daughter cells that are genetically identical to the parent cell
Cytokinesis
- Division of the cytoplasm, resulting in two daughter cells
- usually occurs with mitosis, but in some organisms this is not the case
Mitosis
- nuclear/chemical events resulting in two daughter nuclei with identical genetic material to each other and to the mother cell
- consists of prophase, metaphase, anaphase, and telophase
Cell Cycle
- The sequence of events that a cell goes through from one cell division to the next
- Includes interphase and the four phases of mitosis
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Description
This quiz covers the process of cell division in eukaryotic cells, including cytokinesis and mitosis. It explains the stages of cell division and how they occur.
