Question: UV light are microcidal due to the formation of
Options:
Pyrine dimers
Pyrimidine dimer
DNA damage
RNA damage
✅Explanation:
-UV light, particularly UV-C radiation, is highly energetic and causes the formation of pyrimidine dimers in DNA. Pyrimidines (thymine and cytosine) are bases in DNA, and when adjacent pyrimidines on the same DNA strand absorb UV radiation, they can become covalently linked, forming a dimer. These dimers distort the DNA structure, interfering with DNA replication and transcription, ultimately leading to cell death. This is the primary mechanism behind the germicidal effect of UV light.
-UV light, particularly UV-C radiation, is highly energetic and causes the formation of pyrimidine dimers in DNA. Pyrimidines (thymine and cytosine) are bases in DNA, and when adjacent pyrimidines on the same DNA strand absorb UV radiation, they can become covalently linked, forming a dimer. These dimers distort the DNA structure, interfering with DNA replication and transcription, ultimately leading to cell death. This is the primary mechanism behind the germicidal effect of UV light.