MCQ
In some viruses, RNA is present instead of DNA indicating that:
  • A
    Their nucleic acid must combine with host DNA before replication.
  • B
    They cannot replicate.
  • C
    There is no hereditary information.
  • D
    RNA can act to transfer heredity.

Answer

  1. RNA can act to transfer heredity.

Explanation:

An RNA virus is a virus that has RNA (ribonucleic acid) as its genetic material. This nucleic acid is usually single-stranded RNA (ssRNA), but may be double-stranded RNA (dsRNA). In some viruses, RNA is present instead of DNA indicating that RNA can act to transfer heredity. They use RNA to transfer genetic information.

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