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Unit 6 Cell Cycle
| Term | Definition |
|---|---|
| cell division | the process in reproduction and growth by which a cell divides to form daughter cells |
| asexual reproduction | process of reproduction involving a single parent that results in offspring that are genetically identical to the parent |
| sexual reproduction | type of reproduction in which cells from two parents unite to form the first cell of a new organism |
| chromosomes | a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes. |
| chromatin | Substance found in eukaryotic chromosomes that consists of DNA tightly coiled around histones |
| chromatid | one half of a duplicated chromosome |
| cell cycle | series of events in which a cell grows, prepares for division, and divides to form two daughter cells |
| interphase | Cell grows, performs its normal functions, and prepares for division; consists of G1, S, and G2 phases |
| mitosis | cell division in which the nucleus divides into nuclei containing the same number of chromosomes |
| cytokinesis | division of the cytoplasm to form two separate daughter cells |
| centromere | the region of the chromosome that holds the two sister chromatids together during mitosis |
| cancer | A disease in which some body cells grow and divide uncontrollably, damaging the parts of the body around them. |
| growth factors | stimulate the growth and division of cells |
| cyclin | one of a family of proteins that regulates the cell cycle in eukaryotic cells |
| tumor | mass of rapidly dividing cells that can damage surrounding tissue |
| homologous | chromosomes that are the same size and shape |
| diploid | containing two complete sets of chromosomes, one from each parent. |
| haploid | (genetics) an organism or cell having only one complete set of chromosomes |
| meiosis | a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores. |
| crossing over | exchange of genetic material between homologous chromosomes during prophase I of meiosis |
| somatic cells | any cell of a living organism other than the reproductive cells. |
| gametic cells | reproductive cells |
| a/an- | without/none |
| di- | two/double |
| cyt- | cell |
| centr- | center/central |
| chrom- | color |
| inter | inside |
| soma | body |
| mut- | change |
| zyg- | joined together |
| intra | between |
| pro | before |
| telo | end |