Chapter 3: Cell Division
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19 terms
Terms | Definitions |
|---|---|
 DNA | a chemical that contains information for an organism's growth and functions. |
| chromosome | compacted DNA. Humans have 48, Fruti flies have 8, and corn plants have 20. |
| cell cycle | the normal sequence of development and division of a cell. |
| interphase | the part of the cell cycle during which a cell is not dividing. |
| mitosis | the part of the cell cycle during which the nucleus divides. |
| cytokinesis | the division of the parent cell's cytoplasm. |
| asexual reproduction | one organism produces one or more new organisms that are identical to it and that live independantly of it. |
| binary fission | the form of asexual reproduction occuring in prokaryotes. |
| regeneration | the process of new tissue growth at these sites. |
| prophase | the step of mitosis when the DNA in the nucleuses of a cell condenses and becomes visible under a light microscope. |
| metaphase | the step of mitosis when the chromosomes line up in the middle of the cell. |
| anaphase | the step of mitosis when the chromosomes split, resulting in two seperate identical chromosomes and then are pulled to opposite side of the cell. |
| telophase | the step of mitosis when a new nucleur membrane forms around each group of chromosomes. the chromosomes then return to their threadlike form. |
| spindle fibers | strings attached to the chromosomes to pull them apart. |
| sexual reproduction | when two organisms produce another organism. |
| genetic material | contains information neede for the cell's growth and other activities. |
| centrioles | a small organelle that divides ekaryotic cells. |
| buddings | a process in which and organism develops buds on its body. |
| cell division | when cells divide, |
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