Biology · Microbiology
The genomic DNA of a bacterial cell is protected from its own restriction endonucleases by the addition of a methyl group (-CH3) by methyltransferases. In the case of cytosine methylation, this modification typically occurs at which position of the cytosine ring?
- 15th Carbon✓
- 24th Carbon
- 36th Carbon
- 47th Nitrogen
Correct answer
5th Carbon
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