Viruses contain dna and rna?

Question

do viruses contain dna and rna or is just dna?

Answer 1

usually they have RNA but a few viruses contain DNA  too  

Answer 2

I'm pretty sure each species carries one or the other.

Answer 3

viruses contain both dna and rna.

dna virus example-cauli flower mosaic virus

rna virus example-hiv

Answer 4

viruses contain either dna or rna......most animal virus have dna ....and most plant virus hav rna as their genomic material....

.......viral dna and rna both may be single or double standed........some viruses contain partially double n partially single standed dna or rna........  

Answer 5

yes, they are bacteriophages ( bacteria eaters )

viruses have DNA, while the RNA of bacteria gets transmitted 2 the

bacteriophages

Answer 6

Usually they just contain one or the other (usually RNA), not both.  Viruses are usually very simple--genetic material and a way to implant it in cells.

Answer 7

Viruses can contain either DNA or RNA or even both, but its uncommon for them to have both.  Most, however do contain RNA.

Answer 8

Both it depends on which virus, and there are a lot of them out there!