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Cell Cycle & Mitosis
intro to cell cycle and mitosis
| Question | Answer |
|---|---|
| disease caused by uncontrolled cell growth and division | cancer |
| phase made up of G1, S, G2 | interphase |
| phase(s) where cell is growing | G1 and G2 phase |
| phase where DNA is copied | S phase |
| division of the cytoplasm into 2 separate cells | cytokinesis |
| phase where cell is not dividing or preparing to divide | G0 |
| when DNA condenses into the shape of letter "X" | chromosome |
| cell organelle that holds DNA (genetic info) | nucleus |
| 1st stage of mitosis ; chromatin forms chromosomes | prophase |
| 2nd stage of mitosis ; chromosomes move to the center single file | metaphase |
| 3rd stage of mitosis ; chromosomes split to opposite poles inside cell | anaphase |
| 4th stage of mitosis ; you can almost see 2 cells [cleavage furrow or cell plate forms] | telophase |
| the pair that helps the cell divide during mitosis (moves chromosomes) | centrioles |
| center of a chromosome ; where spindle fiber attaches to move chromosome around during cell division | centromere |
| process that makes genetically different cells | meiosis |
| number of cells made by meiosis | 4 |
| number of cells made by mitosis | 2 |
| mitosis is an example of this type of reproduction | asexual (type of reproduction) |
| meiosis is an example of this type of reproduction | sexual (type of reproduction) |
| the sharing of genetic info by chromosomes during prophase I | crossing over |
| mitosis has this effect on genetic variation | none (zero) effect |
| meiosis has this effect on genetic variation | increasing effect |
| type of cells made by mitosis | body cells |
| type of cells made by meiosis | sex cells |
| number of checkpoints in the cell cycle | 3 |
| "strings" made by centrioles to move chromosomes around | spindle fibers |
| the correct order of phases in mitosis | P --> M --> A --> T |