Podcast
Questions and Answers
What occurs during interphase in preparation for mitosis?
What occurs during interphase in preparation for mitosis?
- DNA is replicated and organelles are duplicated. (correct)
- Cytokinesis starts to occur.
- Sister chromatids are pulled to opposite poles.
- Chromosomes condense and line up in the middle.
Which stage of mitosis involves the lining up of chromosomes along the middle of the cell?
Which stage of mitosis involves the lining up of chromosomes along the middle of the cell?
- Anaphase
- Prophase
- Metaphase (correct)
- Telophase
During which stage do chromatids appear v-shaped as they are pulled apart?
During which stage do chromatids appear v-shaped as they are pulled apart?
- Metaphase
- Anaphase (correct)
- Telophase
- Prophase
What happens to the chromosomes during telophase?
What happens to the chromosomes during telophase?
What is the role of the spindle fibers during mitosis?
What is the role of the spindle fibers during mitosis?
Which of the following is NOT a characteristic of prophase?
Which of the following is NOT a characteristic of prophase?
What concludes the process of mitosis?
What concludes the process of mitosis?
Which of the following correctly describes the state of DNA during interphase?
Which of the following correctly describes the state of DNA during interphase?
Flashcards
Mitosis
Mitosis
The process where a single cell divides into two identical daughter cells.
Interphase
Interphase
The period of the cell cycle where the cell grows, replicates DNA, and prepares for division.
Prophase
Prophase
The first stage of mitosis, where chromosomes condense, centrioles move, and the nuclear envelope breaks down.
Metaphase
Metaphase
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Anaphase
Anaphase
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Telophase
Telophase
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Cytokinesis
Cytokinesis
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Sister Chromatids
Sister Chromatids
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Study Notes
Cell Cycle and Mitosis
- The cell cycle is a series of stages, including cell growth and DNA replication (interphase), followed by cell division (mitosis).
- Interphase is divided into three stages: G1, S, and G2.
- Mitosis is a process of cell division resulting in two genetically identical daughter cells.
- Mitosis has four continuous stages: prophase, metaphase, anaphase, and telophase.
Interphase
- The cell carries out normal functions and prepares to divide.
- DNA is unraveled and replicated.
- Organelles are replicated.
- ATP (energy) content increases.
Prophase
- Chromosomes condense, becoming shorter and thicker.
- Centrioles move to opposite poles of the cell.
- Spindle fibres form, connecting to chromosomes.
- Nuclear envelope breaks down.
Metaphase
- Chromosomes (each with two chromatids) line up along the middle of the cell.
- Chromosomes attach to spindle fibres by their centromeres.
Anaphase
- Centromeres divide, separating sister chromatids.
- Spindle fibres contract, pulling chromatids to opposite poles.
- Chromatids appear V-shaped.
Telophase
- Chromatids reach opposite poles.
- Chromatids uncoil, becoming chromosomes again.
- Nuclear envelopes form around each group of chromosomes.
- Cytokinesis (division of cytoplasm) begins.
- Two genetically identical daughter cells result.
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