What contains DNA but not much else?
cigarettes insects bacteria Most plants loose soil pollen mammals smallpox
A B C D E F G H
Some smallpox viruses are maintained in laboratories.
smallpox contains DNA but not much else
What contains DNA but not much else? (A) cigarettes (B) insects (C) bacteria (D) Most plants (E) loose soil (F) pollen (G) mammals (H) smallpox