Cell Cycle Regulation and Tumor Suppressor Genes Quiz

What is the nickname given to the protein p53 due to its crucial role in the cell cycle?

• The Guardian of the Genome

• The Protector of DNA

• The Cell Cycle Regulator

• The Guardian of the Cell

Which of the following proteins is produced from a tumor suppressor gene and is associated with preventing cancer?

• Theobromine

• RB

• p21

• CDK

What percentage of tumors have a defect in the p53 protein?

• About 30%

• Around 70%

• Greater than 50%

• Less than 20%

What unusual ability do mice lacking p21 exhibit?

• Increased resistance to cancer

• Improved DNA repair

• Enhanced cell division

• Ability to regenerate limbs

Why is it crucial to regulate the cell cycle and ensure division occurs at the right time?

• To conserve energy and resources

• All of the above

• To prevent unnecessary cell growth

• To ensure proper protein machinery is available