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MCAT Biology Question — Virus Genome

A virus may carry its genome through which of the following?


I. Single stranded RNA

II. Single stranded DNA

III. Double stranded DNA


A) I and II only

B) II and III only

C) I and III only

D) I, II, and III




Viruses demonstrate a larger variety in their genomes than any other form of life. Their genomes may be composed of DNA or RNA, may be single or double stranded, may be linear or circular, and may be a single unit or segmented into several pieces. Thus (D) is the correct answer.


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