- Features of Vitamin C deficiency is due to defect of which enzyme
A. Lysyl hydroxylase
B. Lysyl oxidase
C. Procollagen peptidase
Ans. A
- Okazaki pieces are seen in
A. DNA repair
B. DNA replication
C. Transcription
D. Translation
Ans. B
- Major Histocompatibility Complex is located on
A. Long arm of chromosome 6
B. Short arm of chromosome 6
C. Long arm of chromosome 7
D. Short arm of chromosome 7
Ans. B
4.Which of the following ketone bodies is commonest following prolonged starvation
A. Aceto acetate
B. B-hydroxy buryrate
C. acetone
D. alpha ketoglutarate
Ans. B?
- cAMP is degraded by
A. Phosphodiesterase
B. Phosphokinase
C. Phosphatase
D. Xanthine oxidase
Ans. A
- Bacterial adherence to epithelium is mediated through
A. pili
B. fimbriae
C. flagella
D. mesosomes
Ans. A
- Which of the following organism is capsulated
A. Histoplasma capsulatum
B. Cryptococcus neoformans
C. Candida albicans
Ans. B
- Ova with lateral spines is a feature of
A. Schistosoma japonicum
B. Schistosoma mansoni
C. Schistosoma haematobium
D. Schistosoma mekongi
Ans. B
- Which of the following is an oncogenic retrovirus
A. HTLV-1
B. HPV
C. EBV
D. HBV
Ans. A
- Which of the following activates the alternate complement pathway
A. IgA
B. IgG
C. IgM
D. IgD
Ans. A
- Which of the following activates the classical complement pathway
A. Immune complex
B. Lipopolysaccharide
C. Exotoxin
Ans. A
- Serum sickness is due to which type of hypersensitivity
A. Type I
B. Type II
C. Type III
D. Type IV
Ans. C
- Most common site of infection with Cryptococcus neoformans is
A. Lung
B. Meninges
Ans. B
- All are true about streptococcal infections except
A. throat infection more common in age group of 5-15years
B. skin infection more common in age <3yrs
C. 15-20% colonization of mucosal surfaces
D. scarlet fever more common <3yrs
Ans. D