4177 Microbiology True statements about Pneumococcus are all except: APneumolysin a thiol activated toxin, exerts a variety of effects on ciliary and PMN’s actionBAutolysin may contribute to the pathogenesis of pneumococcal disease by lysing bacteriaCAnticapsular antibodies are serotype specificDThe virulence of pneumococci is dependent only on the production of the capsular polysaccharide (Correct Answer)
4178 Microbiology Which of the following statements is true about hapten? AIt induces brisk immune responseBIt needs carrier to induce immune response (Correct Answer)CIt is a T-independent antigenDIt has no association with MHC
4179 Microbiology Largest pathogenic Bacillus organism is – ABacillum subtilisBBacillum cereusCBacillum anthrocis (Correct Answer)DBacillum megaterism
4181 Microbiology “Johnes” Bacillus is: AMycobacterium tuberculosisBMycobacterium pseudotuberculosis (Correct Answer)CCorynebaccteriumDH. aegipticus
4182 Microbiology Incubation period of Diptheria is – A2 - 6 days (Correct Answer)B2 - 6 hrsC2 - 6 weeksD2 - 6 months
4183 Microbiology “Autoinfection” is seen with: AAscarisBStrongyloides (Correct Answer)CGiardiaDGnasthostoma
4184 Microbiology Influenza virus belongs to family ? APicornaviridaeBCalciviridaeCOhomyxoviridae (Correct Answer)DParamyxoviridae
4185 Microbiology Draughtsman colonies are seen in AStaphylococcusBSalmonellaCPneumococcus (Correct Answer)DCorynebacterium