HIV Structure and Transmission Routes — NEET Biology
✅ Asked in NEET 2016AIDS is caused by the Human Immuno deficiency Virus (HIV), a member of a group of viruses called retrovirus, which have an envelope enclosing the RNA genome. Transmission of HIV-infection generally occurs by (a) sexual contact with infected person, (b) by transfusion of contaminated blood and blood products, (c) by sharing infected needles as in the case of intravenous drug abusers and (d) from infected mother to her child through placenta. So, people who are at high risk of getting this infection includes - individuals who have multiple
HIV is a retrovirus with an RNA genome enclosed in an envelope, making it structurally unique among viruses. NTA tests whether students can identify HIV's transmission routes: sexual contact, contaminated blood transfusions, sharing needles, and mother-to-child transmission through placenta. Students often confuse which body fluids transmit HIV or incorrectly assume it spreads through casual contact like saliva or tears. Remember: HIV requires direct contact with blood, semen, vaginal fluids, or breast milk—not casual contact. The envelope structure is key because it makes HIV vulnerable to disinfectants and soap, explaining why standard hygiene prevents transmission.
Which of the following is correct regarding AIDS causative agent HIV? (NEET 2016)
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