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Vocab ARCC Bio Ch11
| Term | Definition |
|---|---|
| Cell Cycle | The events that occur from the time a cell forms until the time it divides |
| Interphase | A phase during a cell's life where it: enlarges doubles number of its cytoplasmic components and replicates DNA |
| Mitosis | A nuclear division mechanism that maintains chromosome number. Basis of body growth in tissue repair in multicelled eukaryotes, also asexual reproduction in some plants, animals and fungi |
| asexual reproduction | reproductive mode where offspring come from one parent only |
| homologous chromosomes | chromosomes with the same length, shape and set of genes. |
| anaphase | Mitosis- Stage where sister chromatids separate and move to opposite spindle poles |
| Metaphase | Mitosis- Stage where the cell's chromosomes are aligned midway between poles and spindle |
| prophase | Mitosis- Stage where chromosomes condense and become attached to a newly forming spindle |
| spindle | Dynamically assembled and disassembled network of micro tubules that moves chromosomes during nuclear division |
| telophase | Mitosis- Stage where chromosomes arrive at the spindle poles and decondense, and new nuclei form |
| Cytokinesis | Cytoplasmic Division |
| Cleavage furrow | in a dividing animal cell, the indentation where cytoplasmic division will occur |
| cell plate | after nuclear division in a plant cell, a disk shaped structure that forms a cross-wall between the two new nuclei |
| telomere | noncoding, repetitive DNA sequence at the end of chromosomes; protecting the coding sequences from degration |
| growth factor | molecule that stimulates mitosis and differentiation |
| metastasis | the process in which cancer cells spread from one part of the body to another |
| neoplasm | an accumulation of abnormally dividing cells |
| oncogene | gene that helps transform a normal cell into a tumor cell |
| proto-oncogene | gene that, by mutation, can become an oncogene |
| tumor | a neoplasm that forms a lump |