A. All RNA viruses
B. All DNA viruses
C. All retroviruses
D. All viruses
Correct Answer: All retroviruses ✔
Last Updated: May 11, 2018
A. All RNA viruses
B. All DNA viruses
C. All retroviruses
D. All viruses
Correct Answer: All retroviruses ✔
Last Updated: May 11, 2018