covalently closed circle sentence in Hindi

Examples

1. This small group of viruses, exemplified by the Hepatitis B virus, have a double-stranded, gapped genome that is subsequently filled in to form a covalently closed circle ( ccc DNA ) that serves as a template for production of viral mRNAs and a subgenomic RNA . The pregenome RNA serves as template for the viral reverse transcriptase and for production of the DNA genome.