Question

Which of the following is true of Hepadnaviridae?

		This family of enveloped ds DNA viruses uses reverse transcriptase to make DNA from RNA
		This family of naked ds DNA viruses uses reverse transcriptase to make DNA from RNA
		This family of naked ss DNA viruses uses reverse transcriptase to make RNA from DNA
		Only RNA viruses use reverse transcriptase to convert RNA to DNA
		This family of enveloped ss DNA viruses uses reverse transcriptase to make RNA from DNA

Answer 1

This family of enveloped ds DNA viruses uses reverse transcriptase to make DNA from RNA

The Hepadnaviridae genome contains partially double-stranded DNA. It has the smallest genome of all DNA viruses.

Hepadnaviridae virion consists of an envelope and nucleocapsid. The envelope is spherical and contains cellular lipids, glycoprotein, and virus-specific surface antigens such as HBsAg.

Hepadnaviridae uses reverse transcriptase enzyme which is RNA directed DNA polymerase. This enzyme catalyzes the transcription of RNA into DNA.

Hepadnaviridae ( Hepa = liver) family of the virus includes one virus that is pathogenic to the man that is the Hepatitis B virus.