Which of the following is correct regarding AIDS causative agent HIV?
1. | HIV is an enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase |
2. | HIV is an enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase |
3. | HIV is an unenveloped retrovirus |
4. | HIV does not escape but attacks the acquired immune response |