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Cell Cycle/Mitosis
| Term | Definition |
|---|---|
| Centromere | the region of the chromosome that holds the two sister chromatids together during mitosis. |
| Gamete | A haploid reproductive cell, formed during meiosis, that can combine with another haploid reproductive cell to form a diploid zygote. |
| meiosis | A process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells |
| Mitosis | In eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes. |
| sexual reproduction | reproduction in which gametes from two parents unite. |
| anaphase | 3rd phase; the chromatids of each chromosome separate at the centromere and move in opposite |
| cell cycle | a repeating sequence of cellular growth and division during the life of an organism. |
| Centriole | Cell organelle that aids in cell division in animal cells only, organizes the assembly of the spindles. |
| cytokinesis | The final stage of the cell cycle, in which the cell's cytoplasm divides, distributing the organelles into each of the two new cells, producing 2 genetically identical cells. |
| G1 phase | 1st growth phase, stage of interphase in which cell grows rapidly and performs its normal functions, cell decides if it is going to divide |
| G2 phase | 2nd growth phase, Cell grows and prepares for mitosis |
| interphase | Cell grows, performs its normal functions, and prepares for division; consists of G1, S, and G2 phases |
| metaphase | Centromeres of duplicated chromosomes are aligned at plate. Fully formed spindle attach to the sister chromatids from opposite poles |
| prophase | Centrioles move away from each other towards opposite sides of the cell, Nuclear membrane disintegrates,. chromatin form chromosomes, Longest phase |
| S phase | The synthesis phase of the cell cycle; the portion of interphase during which DNA is replicated. |
| Spindle | A network of microtubules that forms during mitosis and moves chromatids to the poles. |
| telophase | A nuclear membrane forms around each set of chromosomes, and the chromosomes decondense. Mitosis is complete |