What is Cancer?

The video explores the nature of cancer, describing it as an inevitable outcome if one lives long enough. It delves into the mechanisms of cancer, focusing on uncontrolled cell division due to genetic mutations. The role of oncogenes and tumor suppressor genes, particularly P53, is highlighted. The video also discusses DNA repair mechanisms and how their failure increases cancer risk. Despite the complexity, there is optimism for future cures through molecular understanding.

What is described as the ultimate expiration date for biological organisms?

• Infection

• Heart disease

• Cancer

• Aging

What is the primary characteristic of cancer cells?

• They are resistant to all treatments

• They are larger than normal cells

• They do not divide at all

• They divide uncontrollably

What can a mutation in a proto-oncogene lead to?

• A decrease in cell division

• The formation of a benign tumor

• The creation of an oncogene

• The repair of damaged DNA

What is the function of tumor suppressor genes?

• To promote cell growth

• To enhance protein synthesis

• To increase mutation rates

• To suppress uncontrolled cell growth

Which gene is considered the most important tumor suppressor?

• MYC

• P53

• BRCA1

• RAS

What role does the P53 protein play in the cell?

• It causes mutations

• It repairs damaged DNA

• It accelerates cell division

• It inhibits apoptosis

Why does the risk of cancer increase with age?

• The immune system becomes stronger

• Cells become more resistant to mutations

• DNA repair mechanisms improve

• Mutations accumulate over time