Author: admin

Q.66 An antigen X was injected into a rabbit for the first time at time P. Then the rabbit was given a booster dose of X at time Q. Which […]

Q.65 As an antiseptic, alcohol is effective against (A) bacteria and non-enveloped viruses (B) bacterial endospores and fungi (C) bacteria and fungi (D) fungi and non-enveloped viruses Alcohol serves as […]

Q.64 Which one of the following statements is TRUE about MacConkey (MAC) agar medium? (A) MAC agar medium is a selective and differential medium for Gram-positive bacteria. (B) MAC agar […]

Q.63 Which one of the following antibiotics is NOT produced by Streptomyces sp.? (A) Amphotericin B (B) Neomycin (C) Vancomycin (D) Gentamicin Vancomycin stands out as the antibiotic not produced […]

Q.62 The inner mitochondrial membrane comprises of a series of folds known as (A) cristae (B) thylakoids (C) cisterns (D) cilia The inner mitochondrial membrane features distinctive folds called cristae, […]

Q.61 Which one of the following is a contagious disease? (A) Chickenpox (B) Tetanus (C) Malaria (D) Filariasis Chickenpox is the only contagious disease among the options, as it spreads […]

Q.60 Unicellular eukaryotic organisms belong to which one of the following kingdoms of classification? (A) Monera (B) Plantae (C) Protista (D) Animalia Unicellular eukaryotic organisms, such as amoeba and paramecium, […]

Q.59 Which one of the following is NOT a contribution by Robert Koch? (A) Identification of causative agent of anthrax. (B) Discovery of causative agent of tuberculosis. (C) Discovery of […]

Q.58 Microbes that have their optimal growth rate near 𝟏𝟓∘𝐂 but can still grow at 𝟎∘𝐂 to 𝟐𝟎∘𝐂 are known as (A) mesophiles (B) psychrotrophs (C) psychrotolerant (D) psychrophiles Microbes […]

Q.57 Which one of the following is the terminal electron acceptor in the given metabolic reaction catalyzed by methanogens? 𝟒𝐇𝟐 + 𝐂𝐎𝟐 ⟶ 𝐂𝐇𝟒 + 𝟐𝐇𝟐𝐎 (A) H2 (B) CO2 […]