Biology · PYQ NEET UG 2016(2)

Which of the following is correct regarding AIDS causative agent HIV?

1. HIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase.
2. HIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase.
3. HIV is unenveloped retrovirus.
4. HIV does not escape but attacks the acquired immune response.