All are present in HIV except:

Explanation

HIV (Human Immunodeficiency Virus) is an enveloped retrovirus with a complex structure that reflects its unique characteristics. The virus has a lipid envelope derived from the host cell membrane, which contains viral glycoproteins (gp120 and gp41) that are essential for attaching to and entering CD4+ T cells. Inside the envelope, HIV contains two identical single-stranded RNA molecules, which serve as its genetic material. The virus also carries enzymes like reverse transcriptase, integrase, and protease necessary for replication, which are protein components. Additionally, structural proteins form the capsid (p24) and matrix (p17), protecting the RNA and assisting in viral assembly. HIV does not contain DNA initially; rather, the RNA is converted into DNA by reverse transcriptase after entering the host cell. This combination of lipids, RNA, and proteins allows HIV to infect host cells efficiently and replicate within them.