641. Growth factor needed for Salmonella_________________?
A. Tryptophan
B. Niacin
C. B-12
D. Citrate
✅ The correct answer is option Tryptophan.
Medical
Prepare effectively with the latest Medical MCQs with answers and explanations for exams, interviews, and job tests. Our collection covers anatomy, physiology, biochemistry, pharmacology, pathology, microbiology, forensic medicine, community medicine, and clinical skills. These Medical multiple-choice questions are designed for students, medical aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, medical entrance exams, and recruitment assessments. Strengthen your medical knowledge, improve problem-solving skills, and score higher with our updated Medical MCQs.
642. Australia antigen is associated with________________?
A. Hepatitis B surface antigen in acute hepatitis
B. AIDS
C. Chronic leukemia
D. Basal cell carcinoma
✅ The correct answer is option Hepatitis B surface antigen in acute hepatitis.
643. The best method of sterilization of dressing powder is_____________?
A. Autoclaving
B. Hot air oven
C. Inspissation
D. Tyndallization
✅ The correct answer is option Hot air oven.
644. The key cell types involved in the acquired immunity include all EXCEPT________________?
A. B lymphocytes
B. Erythrocytes
C. T lymphocytes
D. Antigen presenting cells (APC
✅ The correct answer is option Erythrocytes.
645. Lepromin test is useful for________________?
A. Diagnosis
B. Prognosis
C. Treatment plan
D. Epidemiology
✅ The correct answer is option Prognosis.
646. Organism most frequently associated with urinary tract infections is_________________?
A. Neisseria gonorrhea
B. Escherichia coli
C. T-strain mycoplasma
D. Streptococcus fecalis
✅ The correct answer is option Escherichia coli.
647. Active artificial immunization is induced by the administration of all of the following EXCEPT______________?
A. Bacterial products
B. Toxoids
C. Vaccines
D. Antitoxins
✅ The correct answer is option Antitoxins.
648. Babu, a 28 year old male comes with compaint of exposure 3 wks back, having cervical Lymphadenopathy, Hepatosplenomegaly. Diagnosis of HIV is done by____________?
A. ELISA
B. Western blot
C. P24 antigen
D. Lymph node biopsy
✅ The correct answer is option P24 antigen.
649. The Window period in HIV infection means______________?
A. The time lapse between the infection and detection of viral antibodies
B. The time lapse between the infection and development of AIDS
C. The time lapse between obtaining the sample and detection of virus in the lab
D. None of the above
✅ The correct answer is option The time lapse between the infection and detection of viral antibodies.
650. Inactivated microorganisms are used in the manufacture of which of the following________________?
A. Salk vaccine
B. Tetanus toxoid
C. Sabin’s oral vaccine
D. All of the above
✅ The correct answer is option Salk vaccine.