Medical Mcqs

Salivary peroxidise system is known to be effective agianst________________?

• (A)  Actinomyces viscosus
• (B)  Lactobacillus acidophilus
• (C)  Streptococcus mutans
• (D)  Veilonella parvula

Answer

Submitted By :Ali Uppal

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

Answer

Submitted By :Ali Uppal

Black pigmented anaerobes include all of the following except______________?

• (A)  Tannerella
• (B)  Porphyromonas
• (C)  Buccae
• (D)  Prevotella

Answer

Submitted By :Ali Uppal

Cough plate method is used to identify________________?

• (A)  Y. pestis
• (B)  Pertussis
• (C)  Mycoplasma
• (D)  M-Tuberculosis

Answer

Submitted By :Ali Uppal

cAMP reaction is shown by which streptococci ?

• (A)  Group A
• (B)  Group B
• (C)  Group C
• (D)  Group D

Answer

Submitted By :Ali Uppal

The mechanism of genetic transfer where a phage serves as a vehicle is_______________?

• (A)  Transduction
• (B)  Translation
• (C)  Lysogeny
• (D)  Conjugation

Answer

Submitted By :Ali Uppal

Fimbriae are demonstrated by ___________________?

• (A)  Culture
• (B)  Gram stain
• (C)  Biochemical reaction
• (D)  Haemagglutination test

Answer

Submitted By :Ali Uppal

Staphylococcal food poisoning includes the following features_______________?

• (A)  Incubation period of 24 hours
• (B)  Requires immediate antibiotics
• (C)  Common with dairy products
• (D)  Heat labile enterotoxin

Answer

Submitted By :Ali Uppal

Phospholipid used to investigate syphilis by the reagin test is________________?

• (A)  Cardiolipin
• (B)  Plasminogen
• (C)  Palmityl lecithin
• (D)  Serine

Answer

Submitted By :Ali Uppal

In small intestine, cholera toxin acts by______________?

• (A)  ADP – ribosylation of the G regulatory protein
• (B)  Inhibition of adenyl cyclase
• (C)  Activation of GTPase
• (D)  Active absorption of NaCI

Answer

Submitted By :Ali Uppal