6 Questions
What are the four main phases of mitosis?
Prophase, metaphase, anaphase, telophase
What happens during metaphase in mitosis?
Chromosomes align along the middle of the cell
What is the last phase of mitosis?
Telophase
What is the main difference between cytokinesis in animals and plants?
In animals, a cleavage furrow forms and deepens, while in plants a cell plate forms and grows
What occurs during prophase in mitosis?
Chromatin condenses, forming chromosomes, and the nucleolus disappears
What happens during anaphase in mitosis?
Sister chromatids separate at the kinetochore and move towards opposite poles as microtubules shorten
Study Notes
- Mitosis is a process of cell division that enables regeneration of body parts
- Mitosis involves the separation of nuclear chromosomes into two identical daughter nuclei
- Mitosis is composed of four main phases: prophase, metaphase, anaphase, and telophase
- During prophase, chromatin condenses, forming chromosomes, and the nucleolus disappears
- Centrosomes, each with a pair of centrioles, move apart forming a spindle between them
- In metaphase, the chromosomes align along the middle of the cell due to microtubules interaction
- During anaphase, sister chromatids separate at the kinetochore and move towards opposite poles as microtubules shorten
- Telophase involves the arrival of daughter chromosomes at the poles, the chromatin starts to decondense, and nucleoli and nuclear membranes reform.
- An additional phase, cytokinesis, occurs after nuclear division, creating two separate cells with their own nuclei and cytoplasm.
- Cytokinesis is different in animals and plants: in animals, a cleavage furrow forms and deepens, dividing the cytoplasm, while in plants a cell plate forms and grows, dividing the cell wall.
Test your knowledge of the mitosis process with this quiz. Learn about the phases and key events involved in cell division.
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