11 Questions
What happens to a cell that has stopped dividing due to cellular ageing?
Senescence
What is the result of failure to repair extensive DNA damage?
One of three states: Senescence, Apoptosis or Unregulated cell division
What is the role of photolyases in DNA repair?
To reversibly bind and convert lesions back to original bases in the presence of visible light
What is the outcome of unregulated cell division?
Formation of a malignant tumor
What is necessary for photoreactivation to occur?
Visible light
What is the process by which a cell identifies and repairs DNA damage?
DNA repair
What determines the rate of DNA repair?
Cell type, cell age, and extracellular environment
What is the result of apoptosis?
Cells destroy themselves
What is the only biomolecule that can be repaired?
DNA
What is the term for the process by which DNA damage is directly reversed?
Single-Strand Break Repair
What is the outcome of cellular senescence?
Cells stop dividing
Learn about the different types of DNA repair enzymes, including alkyltransferase and methyl guanine methyltransferase, and how they correct DNA damage. Understand the process of single-strand break repair and excision repair.
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