The 2015 Nobel Prizes!

The video discusses the Nobel Prize winners in physics and chemistry. Taka Aki Kajita and Arthur B. McDonald discovered that neutrinos have mass, challenging previous assumptions and suggesting neutrinos as potential dark matter candidates. In chemistry, three scientists uncovered DNA repair mechanisms: base excision repair, nucleotide excision repair, and mismatch repair, highlighting how cells maintain genetic integrity despite frequent DNA damage.

What are the different types of DNA damage repair mechanisms mentioned in the text?

Explain the role of the enzyme dam methylase in DNA repair.