Question

state the different criterias employed in the Hierarchical virus classification system and the Baltimore classification system.​

Answer 1

The Baltimore classification groups viruses into families depending on their type of genome.

• The Viral genome's nucleic acid ( DNA or RNA ), strandedness (single-stranded or double-stranded), Sense, and method of replication determine its class.
• Other classifications are determined by the disease caused by the virus or its morphology.
• Viruses can be placed in one of the seven groups.

Classifying viruses according to their genome means that those in a given category will all behave similarly, offering some indication of how to proceed with further research. Viruses can be placed in one of the seven following groups:

I: dsDNA viruses (e.g. Adenoviruses, Herpesviruses, Poxviruses)

II: ssDNA viruses (+)sense DNA (e.g. Parvoviruses)

III: dsRNA viruses (e.g. Reoviruses)

IV: (+)ssRNA viruses (+)sense RNA (e.g. Picornaviruses, Togaviruses)

V: (−)ssRNA viruses (−)sense RNA (e.g. Orthomyxoviruses, Rhabdoviruses)

VI: ssRNA-RT viruses (+)sense RNA with DNA intermediate in life-cycle (e.g. Retroviruses)

VII: dsDNA-RT viruses (e.g. Hepadnaviruses)

Answer 2

Answer:

dna or RNA

criterias employed in the hierarchical virus classification system and the Baltimore classification