What is the composition of the AIDS virus?

RNA with protein

The correct answer is (a) RNA with protein.

The AIDS virus, also known as the Human Immunodeficiency Virus (HIV), contains single-stranded RNA as its genetic material along with associated proteins. HIV is classified as a retrovirus, which means it has an RNA genome. The viral RNA in HIV is associated with various proteins, including enzymes and structural proteins, which are necessary for the virus's replication and assembly. Retroviruses, including HIV, have an RNA genome instead of DNA. The RNA genome of HIV serves as a template for the synthesis of viral DNA through the process of reverse transcription. Once the viral RNA is reverse transcribed into DNA, it integrates into the host cell's DNA and becomes a permanent part of the host genome.

 Option (b) DNA with protein is incorrect. While some viruses have DNA genomes, HIV is not one of them. HIV has an RNA genome, not DNA.

Option (c) RNA without protein is incorrect. The RNA in HIV is associated with proteins, which are essential for the virus's function.

Option (d) Only DNA is incorrect. As mentioned earlier, HIV does not contain DNA as its genetic material.

Therefore, the most appropriate answer is (a) RNA with protein, reflecting the composition of the AIDS virus.