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Q.77 At 𝐎𝐃𝟓𝟒𝟎 𝐧𝐦 = 𝟎. 𝟓, which one of the following bacterial mono-dispersed cell suspensions will have (i) maximum and (ii) minimum number of cells? (P) Mycoplasma pneumoniae (Q) […]

Q.76 Which of the following infectious agents cross the blood-brain barrier? (P) Streptococcus pneumoniae (Q) Coxsackie virus (R) Rotavirus (S) Streptococcus pyogenes (A) P & S (B) R & S […]

Q.75 E. coli ribonuclease contains 124 amino acids. The number of nucleotides present in the gene encoding the protein is ____ . E. coli ribonuclease with 124 amino acids requires […]

Q.74 The net yield of NADH in the Embden-Meyerhof pathway in E. coli is ____ . The Embden-Meyerhof pathway (EMP), or glycolysis, produces a net yield of 2 NADH molecules […]

Q. 73 The precursor for the synthesis of aromatic amino acids is (A) phosphoenolpyruvate (B) pyruvate (C) oxaloacetate (D) 𝛼-ketoglutarate The precursor for the synthesis of aromatic amino acids—phenylalanine, tyrosine, […]

Q. 72 Biofilm produced by bacteria is detected by (A) Saffranin (B) Malachite green (C) Basic fuchsin (D) Congo red Biofilms are slimy, protective communities formed by bacteria that stick […]

Q.71 Teichoic acid is composed of repetitive units of (A) keto-deoxy octanoic acid (B) glucose (C) 𝑁-acetyl glucosamine (D) glycerol Teichoic acid features repetitive units of glycerol in Gram-positive bacterial […]

Q. 70 The enzyme responsible for generation of hypochlorous ions during phagocytosis is (A) NADPH oxidase (B) catalase (C) myeloperoxidase (D) superoxide dismutase Myeloperoxidase: The Key Enzyme Generating Hypochlorous Ions […]

Q.69 Resident macrophages of ____ are called Kupffer cells. (A) brain (B) liver (C) lung (D) kidney This article breaks down a key multiple-choice question (MCQ) on Kupffer cells, specialized resident […]

Q.68 Which one of the following is NOT a part of human microbiome? (A) Propionibacterium acnes (B) Lactobacillus casei (C) Streptococcus suis (D) Bacteroides fragilis Which Bacterium Is Not Part […]