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Plant viruses generally possess single-stranded RNA, whereas bacteriophages are usually double-stranded DNA viruses. A virus contains either RNA or DNA as its genetic material, never both.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Viruses Viroids Prions and Lichens
The particle is a virus. Viruses are inert outside their specific host cells but take over host-cell machinery after infection to produce additional virus particles.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Viruses Viroids Prions and Lichens
Viruses exhibit patterns in their genetic material based on their host. The NCERT textbook specifies that viruses infecting plants generally have single-stranded RNA, and those infecting animals have single/double-stranded RNA or double-stranded DNA. However, 'bacteriophages' (viruses infecting bacteria) are definitively and 'usually double-stranded DNA viruses', which they inject directly into the bacterial host cell for replication.
Ref: NCERT Class 11 Biology > Chapter 2: Biological Classification > 2.6 Viruses, Viroids, Prions and Lichens
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