Q. Mannitol Salt agar constitutes of high salt concentration that is used as both selective and differential culture media for the isolation of which of the following gram-positive cocci? Klebsiella sppStreptococcus sppStaphylococcus sppPseudomonas spp Answer: Staphylococcus spp

Q. Which of the following media is one of the commonly used media for the proper isolation of gram negative pathogens such as Haemophilus spp and Neisseria gonorrhoeae? Potato dextrose agarChocolate agarNutrient agarMac Conkey agar Answer: Chocolate agar

Q. Which of the following bacteria is a part of the human gut and mouth flora that is also important in making some fermented dairy products? Candida albicansLactobacillus acidophilusStaphylococcus aureusMicrococcus luteus Answer: Lactobacillus acidophilus

Q. Which of the following bacteria have a hemolytic property that can grow well in blood agar? Bacillus anthracisProteus vulgarisStreptococcus pyogenesCandida albicans Answer: Streptococcus pyogenes

Q. All of the statements regarding Bacillus anthracis are true, Except The causative agent of smallpoxNonhemolytic colonies appear on Blood agarCommonly transmitted from animals to humansEndospore-forming bacteria Answer: The causative agent of smallpox

Q. Clostridium perfringens on agar can show all of the following cultural characteristics, Except? MicroaerophilicSpore-formingH2S productionHaemolysis (alpha and beta) Answer: Microaerophilic

Q. Which of the bacteria consists of flagella and shows a positive motility test? Staphylococcus aureusYersinia pestisKlebsiella pneumoniaeProteus vulgaris Answer: Proteus vulgaris

Q. All of the following bacteria are catalase positive, Except E. coliShigella sppStaphylococcus sppStreptococcus spp Answer: Streptococcus spp

Q. The metabolic reactions are shown by different bacteria help in the identification and classification of bacteria, which of the following biochemical tests show a negative result for Escherichia Coli? LactoseIndoleCitrateGlucose Answer: Citrate

Q. All of the following are common stains used in the microbiology laboratory, Except: Bismarck brownLactophenol cotton blueZiehl - Neelsen stainCrystal violet Answer: Bismarck brown