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Biology Chapter 10A
Part 1 of Chapter 10 Vocab.
| Term | Definition |
|---|---|
| Cell Division | process by which a cell divides into TWO new daughter cells |
| Asexual Reproduction | involving a single parent involves one parent and produces offspring that are genetically identical to each other and to the parent |
| Sexual Reproduction | involving two parents and produces offspring that genetically unique, and the parents unite to form the first cell of a new organism |
| Chromosome | threadlike structure of DNA and protein that contains genetic information |
| Chromatin | substance with complex DNA, RNA, and has histone proteins that is distributed in the nucleus of an eukaryotic cell, which condenses to form chromosomes during cell division |
| Cell Cycle | series of events in which a cell grows, prepares for division, and divides to form two daughter cells |
| Interphase | period of the cell cycle between cell divisions in which the cell grows, general cell processes occur, and the nuclear DNA is duplicated |
| Mitosis | division of the cell’s nucleus and results in TWO genetically identical daughter cells during ASEXUAL reproduction (growth and repair) each with the same number and kinds of chromosomes |
| Cytokinesis | division of the cytoplasm to form two separate daughter cells |
| Prophase | first and longest phase of mitosis in which the genetic material inside the nucleus condenses, the chromosomes become visible, the nucleolus disappears, while the nuclear membrane breaks down. (crossing over can occur) |
| *Early prophase | replicated chromatids are present, the replicated centrioles migrate to opposite poles of the cell, and spindle fibers become visible. |
| *Late prophase | nucleolus and nuclear envelope disintegrate and chromatids condense to form dense coils |