Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
Which of the following statements about AIDS is FALSE?
AIDS is caused by the HIV virus.
AIDS can be transmitted through mosquito bites.
AIDS can be prevented by practising safe sex.
AIDS affects the immune system of the body.
AIDS can be transmitted through mosquito bites.
AIDS (Acquired Immunodeficiency Syndrome) is caused by the Human Immunodeficiency Virus (HIV), which attacks and destroys the immune system, specifically the CD4+ T-cells. It is primarily transmitted through bodily fluids such as blood, semen, vaginal fluids, and breast milk; it is not spread through insects, air, water, or casual contact.
AIDS (Acquired Immunodeficiency Syndrome) is caused by the Human Immunodeficiency Virus (HIV), which attacks and destroys the immune system, specifically the CD4+ T-cells. It is primarily transmitted through bodily fluids such as blood, semen, vaginal fluids, and breast milk; it is not spread through insects, air, water, or casual contact.
Think of the immune system as a fortress with guards (CD4 cells); HIV is a saboteur that sneaks inside, infiltrates the guards, and disables the entire security system, making the castle defenseless against invaders (other diseases).
HIV+HostCellтЖТDNAIntegration
CD4+┬аCountтЖУтЗТImmune┬аDeficiency
HIV is a retrovirus that contains RNA. Upon entering the human body, it uses the enzyme reverse transcriptase to convert its RNA into DNA, which then integrates into the host cell's genome. The virus replicates within immune cells, eventually killing them and leaving the body vulnerable to opportunistic infections. Since mosquitoes do not carry HIV as a host (the virus dies within the insect's digestive tract), they cannot transmit it to humans.
HIV is a lentivirus (a subset of retroviruses).
Transmission requires direct contact with infected blood or specific body fluids.
Mosquitoes act as biological vectors for diseases like Malaria or Dengue, but NOT for HIV.
HIV stands for Human Immunodeficiency Virus.
Option B is false because mosquitoes do not transmit HIV; the virus is broken down in the insect's digestive system.
B is correct тАФ AIDS is NOT transmitted through mosquito bites because HIV cannot replicate within or survive the digestive processes of a mosquito.
Always distinguish between 'vector-borne' diseases (like Malaria, transmitted by mosquitoes) and 'blood-borne' infections (like HIV/Hepatitis B, which require direct fluid exchange).
Get instant step-by-step AI explanations, full shift Previous Year Papers (SSC GD, RRB, SSC JE), and regional rank analysis on the official Examoogle App.
Free Download тАв 100K+ Aspirants