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Biology: Chapter 8.2
Chapter 8.2 Vocabulary
| Term | Definition |
|---|---|
| Binary Fission | the division of a prokaryotic cell into two offspring cells |
| Mitosis | results in new cells with genetic material that is identical to the genetic material of the original cell; occurs in organisms undergoing growth, development, repair, or asexual reproduction |
| Asexual Reproduction | the production of offspring from one parent |
| Meiosis | occurs during the formation of gametes; reduces chromosome number by half in new cells |
| Gamete | haploid reproductive cells |
| Interphase | the time between cell divisions |
| Cytokinesis | the division of the cell's cytoplasm |
| Prophase | the first phase of mitosis; begins with the shortening and tight coiling of DNA into rod-shaped chromosomes that can be seen with a light microscope |
| Spindle Fiber | made of microtubules; radiates from the centrosomes in preparation for metaphase |
| Metaphase | the second phase of mitosis; chromosomes are easier to identify by using a microscope than during other phases |
| Anaphase | chromatids of each chromosome separate at the centromere and slowly move, centromere first, toward opposite poles of the dividing cell |
| Telophase | after the chromosomes reach opposite ends of the cell, the spindle fibers disassemble, and the chromosomes return to a less tightly coiled chromatin state |
| Cell Plate | vesicles from the Golgi apparatus join together at the midline of the dividing cell to form this |