Question: Lactobacilli constitute the normal flora of [A]. prepubertal vagina [B]. adult vagina [C]. post-menopausal vagina [D]. none of these Answer: Option B Explanation: No answer description available for this question.

Question: Lactobacilli grow best under [A]. strict anaerobic conditions [B]. microaerophilic conditions in presence of 5% CO2 and PH6 [C]. microaerophilic conditions in presence of 3% CO2 and PH5 [D]. microaerophilic conditions in presence of 2% CO2 and PH4 Answer:…

Question: The bacteria which is predominant flora of the human gut is [A]. Escherichia coli [B]. Clostridium perfringens [C]. Bacteroides [D]. Actinomyces Answer: Option B Explanation: No answer description available for this question.

Question: Colonies resembling molar teeth are produced by [A]. Nocardia brasiliensis [B]. N. asteroids [C]. Actinomyces israelii [D]. Actinomadura madurae Answer: Option C Explanation: No answer description available for this question.