Prepare for NEET Biology Biology and Human Welfare (AIDS) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert guidance to understand HIV transmission, symptoms, and prevention.
A patient presents with recurrent opportunistic infections, persistent lymphadenopathy, and a drastically reduced CD4+ T-cell count. Which of the following stages of HIV infection does this MOST accurately represent?
Acute HIV infection
Clinical latency
AIDS
Seroconversion
Which of the following is NOT a typical opportunistic infection seen in AIDS patients?
Pneumocystis pneumonia (PCP)
Kaposi's sarcoma
Toxoplasmosis
Influenza
A patient with advanced HIV infection develops a rapidly progressing brain lesion caused by a eukaryotic parasite. Which of the following is the MOST likely causative agent?
Mycobacterium tuberculosis
Candida albicans
Toxoplasma gondii
Cryptococcus neoformans
Which of the following immunological markers is the MOST reliable indicator for the progression from HIV infection to AIDS?
Presence of HIV antibodies
Viral load above 10,000 copies/mL
CD4+ T-cell count below 200 cells/mm³
Decreased levels of immunoglobulins
Highly Active Antiretroviral Therapy (HAART) is crucial in managing HIV infection. Which of the following is NOT a primary target of HAART?
Reverse transcriptase
Integrase
Protease
CD4+ receptor
A patient diagnosed with AIDS presents with purple lesions on the skin. Biopsy reveals spindle-shaped tumor cells and angiogenesis. Which opportunistic infection is MOST likely responsible?
Cytomegalovirus retinitis
Kaposi's sarcoma
Tuberculosis
Cryptococcal meningitis
Which of the following is the causative agent of AIDS?
Human Immunodeficiency Virus (HIV)
Hepatitis B Virus (HBV)
Human Papillomavirus (HPV)
Mycobacterium tuberculosis
HIV primarily infects which type of cells in the human body?
Red blood cells
Platelets
T-helper cells (CD4 cells)
B cells
Which of these is NOT a common mode of HIV transmission?
Unprotected sexual intercourse
Sharing infected needles
Mother to child during pregnancy/childbirth
Sharing utensils
AIDS is characterized by a severe weakening of the:
Digestive system
Respiratory system
Immune system
Nervous system
