The 4 Types of Tissue:
Epithelial Tissue
Connective Tissue
Muscular & Nervous Tissue
The Cell Cycle
"Are telomeres the key to aging and cancer?" - Utah Genetics
Cancer
Questions from the "Boundless" text:
Regulation at Internal Checkpoints
Regulation at Internal Checkpoints
- Why does the cell cycle have checkpoints?
- What does the G1 checkpoint check for?
- What happens if a cell does not meet the standards for the G1 checkpoint?
- What does the G2 checkpoint check for?
- What does the M checkpoint check for?
- What is the difference between positive and negative regulation of the cell cycle?
- What do cyclin-CDK complexes do for the cell cycle? How?
- What are the 3 negative regulatory proteins? (The genes that code for these proteins are called tumor suppressor genes.)
- What happens if one of the negative regulatory proteins gets mutated?
- What do proto-oncogenes code for?
- What happens if proto-oncogenes become oncogenes?
- What can happen if the tumor-suppressor genes stop working properly?
- Mutations in the p53 gene is found in over of human tumor cells. Explain how this mutated p53 tumor-suppressor gene affects the cell cycle and leads to cancer?