Mitosis Flashcards
What is cytokinesis?
This is the final step in the cell cycle.
Division of cytoplasm and cell membrane.
Stage of cell division in which the cytoplasm is divided to form two daughter cells.
What is mitoses?
The division of chromosomes and nucleus.
Only in Eukaryotes!
What are the steps of mitosis?
- Prophase
- Prometaphase
- Metaphase
- Anaphase
- Telophase
Explain the prophase.
The DNA condenses, organizes, into chromosomes structure.
The first stage of mitosis, chromosomes become visible as distinct structures, the nuclear envelope breaks down, and a spindle forms
Explain Telophase.
The last stage of mitosis, when, having reached the poles, chromosomes become decondensed, and a nuclear envelope forms around each group.
Asexually reproducing organisms produce offspring that are genetically identical to each other and to the parents. What type of cell division produces daughter cells that are identical to the parents in eukaryotes?
Binary fission produces 2 identical cells in prokaryotes.
Cleavage of the cytoplasm is the main event that happens during…?
Cytokenisis
The term kinetochore is associated with what following structure of chromosome?
Centromere
What are asters ?
Clusters of microtubules radiating out from the poles in dividing cells. They are present in animal cells, but not in the cells of flowering plants and most gymnosperms.
The breaking and rejoining of homologous (non sister) chromatids during early meiotic prophase I, resulting in an exchange of genetic material.
Synapsis
The stage of mitosis, and of meiosis I and II, in which the chromosomes line up on the equatorial plane of the cell.
Metaphase
Centrosomes
The main microtubule organizer of the cell.
The structure that forms during cytokinesis in plants, separating the two daughter cells produced by mitosis.
Cell wall
