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Unit 11 LE Vocab
Mitosis, Cancer, and Asexual Reproduction
| Term | Definition |
|---|---|
| Cancer | uncontrolled cell division |
| Tumor | mass of cells that have piled on top of each other |
| Mitosis | type of cell division in which one parent cell divides into two daughter cells that are identical; also refers to division of the nucleus |
| Cell Cycle Stages | G1, S, G2, M |
| G1 phase | phase of the cell cycle when the cell is growing and performing normal functions |
| S phase | phase of the cell cycle when the DNA is replicated (copied) |
| G2 phase | phase of the cell cycle when the cell is preparing to divide |
| M phase | the phases of the cell cycle when the nucleus is dividing |
| Stages of Mitosis | Prophase, Metaphase, Anaphase, Telophase |
| Interphase | Consistes of G1, S, and G2 phases of the cell cycle. Cells spend most of their time in this part of the cell cycle. |
| Cytokinesis | the division of the cytoplasm |
| Prophase | Chromatin condenses into chromosomes, spindle fibers form, centrioles move to opposite poles of the cell |
| Metaphase | chromosomes line up in the middle of the cell |
| Anaphase | spindle fibers pull the sister chromatids to opposite poles of the cell |
| Telophase | two new nuclei form |
| DNA | genetic material in cells |
| Chromosome | condensed DNA |
| Chromatin | DNA when it's not condensed |
| DNA Replication | when a copy of all the DNA in the cell is made |
| Chromatid | a single chromosome |
| Centromere | Where two sister chromatids connect |
| Sister Chromatids | identical copies of a chromosome |
| Gene | a section of DNA that codes for a protein |
| Asexual reproduction | reproduction that produces genetically identical offspring from a single parent |
| Sexual reproduction | reproduction that produces genetically different offspring from two parents |
| Binary Fission | a type of asexual reproduction in which a cell grows, then splits into two |
| Vegetative Propagation | a type of asexual reproduction in plants. Examples include tubers, runners, rhizomes, and bulbs |
| Budding | a type of asexual reproduction in which a small copy of an organism "buds" off of the parent organism, then grows into a full grown individual |