click below
click below
Normal Size Small Size show me how
MItosis/Meiosis
| Term | Definition |
|---|---|
| Mitosis | A type of cell division that has two daughter cells have the same number and kind of chromosomes. |
| Diploid (Number) | Contains two sets of chromosomes, one from each parent. |
| Chromosome(s) | A structure in all living things; occur as tread-like strands in the nucleus. |
| Interphase | Resting phase between the first and second divisions of meiosis. |
| Crossing Over | The exchange of genes between homologous chromosomes. |
| Anaphase | The stage of mitosis or meiosis that has the chromosome move away from one another. |
| Haploid/Monoploid | Having a single set of chromosomes. |
| Daughter Nuclei | The result from the division of a single nucleus. |
| Tetrad | Four part structure that forms during Prophase I of meiosis; consists of two homologous chromosomes. |
| Gametogenesis | Process in which cells undergo meiosis to form a gametes. |
| Meiosis | A type of cell division that involves half the number of the parent chromosomes to create four daughter cells. |
| Metaphase | Second stage of cell division; the chromosomes become attached to the spindle fibers. |
| Cytokinesis | The cytoplasmic division of a cell; brings about the separation in the two daughter cells. |
| Disjunction | The normal separation of moving apart chromosomes twards the opposite sides of the cell. |
| Variation | Difference between the cells; caused by genetic differences. |
| Telophase | Final phase of the cell division; the chromatids or chromosomes move to opposite ends ends of the cells and two nuclei are formed. |
| Replication | Duplicating an exact copy of the polynucleotide. Ex: DNA |
| Synapsis | A junction between two nerve cells. |
| Prophase | First stage of cell division; chromosomes become visible as paired chromatids and the nuclear envelop disappears. |
| Centrioles | A minute cylindrical organelle between the nucleus in animal cells; occur in pairs and are involved in the development of spindle fibers. |