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Q.82 If the plasmid given below is digested with restriction enzymes HindIII andEcoRI, considering complete digestion, how many DNA fragments will bereleased? Plasmid digestion with HindIII and EcoRI releases 3 […]

Q.81 Which of the following statements are TRUE for archaea?(A) Cell wall in archaea contains muramic acid and D-amino acid(B) N-Formylmethionine is the first amino acid to initiate new polypeptide […]

Q.80 Which of the following Gram-positive cocci are found in biofilm of dentalplaque?(A) Gonococcus(B) Streptococcus mutans(C) Streptococcus sobrinus(D) Fusobacterium species Streptococcus mutans and Streptococcus sobrinus are the correct Gram-positive cocci […]

Q.79 Which of the following diseases are caused by family of DNA viruses?(A) Hepatitis B(B) Smallpox(C) Influenza(D) Rabies Hepatitis B and Smallpox are caused by DNA viruses, making options (A) […]

Q78 The correct sequence of overall biochemical reaction which expresses the process of denitrification is Option Sequence (A) NO₃⁻ → NO₂⁻ → NO → N₂O → N₂ (B) NO₃⁻ → […]

Q.77 Match the correct mode of cell division with respective bacteria.Bacteria(P) Streptomyces species(Q) Rhodopseudomonas acidophila(R) Bacillus subtilis(S) Nocardia species (A) (P)-(ii), (Q)-(iii), (R)-(i), (S)-(iv)(B) (P)-(ii), (Q)-(i), (R)-(iii), (S)-(iv)(C) (P)-(iv), (Q)-(ii), […]

Q76 Match the pathogen with the appropriate disease. Pathogen Disease (P) Streptococcus pyogenes (i) Scarlet fever (Q) Brucella species (ii) Pot’s disease (R) Mycobacterium tuberculosis (iii) Traveler’s diarrhea (S) Escherichia […]

Q75 Choose the correct match for structural components of bacteria to their function. Structural component Function (P) Flagella (i) prevent lysis (Q) Cell wall (ii) chemotaxis (R) Metachromatic granules (iii) […]

Q.74 Nonsense suppressor mutation is found in _________________.(A) rRNA(B) tRNA(C) start codon of mRNA(D) stop codon of mRNA The correct answer is (B) tRNA. Nonsense suppressor mutations primarily occur in […]

Q.73 Which of the following are present in Gram-negative bacteria?(A) Lipopolysaccharide(B) Teichoic acid(C) Periplasm(D) Endotoxin Gram-negative bacteria possess a distinctive cell wall structure featuring an outer membrane and periplasmic space, […]