Biology - Concept check 21.1
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Which statement is true?
Viruses are acellular.
Why is the sequence of the 16s rRNA not useful in virus classification?
Viruses do not have ribosomes.
Viral morphology is very simple. What parts make up a virus?
nucleic acid core with an outer protein coating
Which is the hypothesis suggesting that viruses evolved from DNA or RNA molecules that escaped from the host cell?
progressive
The observation that the bacteria genus Chlamydia contains species that can only survive as intracellular parasites supports which viral origin hypothesis?
regressive