A. IgM antibodies
B. Lysozyme
C. Mast cells
D. IgA antibodies
✅ The correct answer is option IgA antibodies.
Microbiology
Characteristic feature of retrovirus is_____________?
A. Ribonuclease
B. Reverse transcriptase
C. DNA polymerase
D. Restriction endonuclease
✅ The correct answer is option Reverse transcriptase.
A full course of immunization agianst. Telanus with 3 doses to Tetanus toxoid, confers immunity for how many years ?
A. 5
B. 10
C. 15
D. 20
✅ The correct answer is option 10.
Which of the following are correctly matched ?
A. Transfer of antibody from mother to child is through colostrum and acquired passive immunity naturally
B. Injection of antibodies (Hepatitis) is artificially acquired passive immunity
C. Antigenic stimulus given by vaccine (polio) is artificial active immunity
D. All of the above
✅ The correct answer is option All of the above.
The causative organism for cat-scratch disease is______________?
A. Chlamydia trachomatis
B. Donovania granulomatis
C. Bartonella henselae
D. Hemophilia ducreya
✅ The correct answer is option Bartonella henselae.
Which of the following organisms are arranged in cubical packets of eight cocci________________?
A. Staphylococcus
B. Micrococcus
C. Sarcina
D. Aerococcus
✅ The correct answer is option Sarcina.
Opacity around colonies of Clostridium perfringens is due to_________________?
A. Theta toxin
B. Lecithinase
C. Desmolase
D. Cytokinin
✅ The correct answer is option Lecithinase.
True about immune response of hepatitis B is__________________?
A. Antibody of HBs Ag is associated with resistance to infection
B. Antibody to HBC is not protective
C. Highest titres of anti HBC are found in persistent carriers of HBs Ag
D. CMI disappears soon after recover
✅ The correct answer is option Antibody of HBs Ag is associated with resistance to infection.
The antigen used in Weil Felix test is obtained from________________?
A. Pseudomonas
B. A. coli
C. B. Proteus
D. C. Staphylococcus
✅ The correct answer is option Proteus.
IL-1 and TNF a during inflammation are secreted by______________?
A. Plasma cells
B. Activated macrophages
C. Lymphocytes
D. Platelet
✅ The correct answer is option Activated macrophages.