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Disruptions of CC
Covers Unit 5: Disruptions to the Cell Cycle
| Question | Answer |
|---|---|
| An agent that causes a genetic mutation is a... | mutagen |
| How does apoptosis keep their body healthy? | - replaces old cells - supports overall balance - strengthens immunse system - gets rid of damaged cells - stops damaged cells from multiplying |
| What's being checked at the G1 checkpoint? | - nutrients - DNA damage - growth factors |
| What's being checked at the G2 checkpoint? | - cell size - DNA replication |
| programmed cell death is known as... | apoptosis |
| T or F: There are two checkpoints during interphase? | TRUE |
| Name an environmental factor that can cause mutations. | - UV radiation - grilled food - xrays - bacteria - viruses - cigarettes |
| What is cell differentiation? | process where stem cells become specialized cells |
| What's being checked at the M checkpoint? | chromosome spindle fiber attachment |
| What is happening during telophase? | two new nuclear membranes start to form |
| What is happening during G1 phase? | normal growth & function |
| What is happening during prophase? | nuclear membrane starts to dissolve to free DNA |
| What is happening during anaphase? | chromosomes are pulled apart to opposite ends of the cell |
| What is happening during G2 phase? | organelles double and the cell continues to grow and prepare for division |
| What is happening during metaphase? | chromosomes line up in the middle of the cell |
| What is happening during cytokinesis? | the cytoplasm splits and two identical daughter cells are formed |
| What is happening during the S phase? | DNA replication |