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MCQs

Total Questions : 274 | Page 24 of 28 pages
Question 231. . Genetic system is located in the prokaryotes in
  1.    nucleoid
  2.    chromatin
  3.    nuclear material
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 232. . The last step in synthesis of peptidoglycan is
  1.    attachment of a peptide to muramic acid
  2.    attaching two amino acids to form a cross-link
  3.    attachment of a portion of peptidoglycan to a membrane lipid
  4.    binding of penicillin to a membrane protein
 Discuss Question
Answer: Option B. -> attaching two amino acids to form a cross-link
Question 233. . The next to last step in peptidoglycan biosynthesis is
  1.    synthesis of the NAM-peptide subunit
  2.    removal of the subunit from bactoprenol
  3.    linking the sugar of the disaccharide-peptide unit to the growing peptidoglycan chain
  4.    cross-linking the peptide side chains of peptidoglycan
 Discuss Question
Answer: Option C. -> linking the sugar of the disaccharide-peptide unit to the growing peptidoglycan chain
Question 234. . The cocci which forms a bunch and irregular pattern are
  1.    Staphylococci
  2.    diplococci
  3.    Tetracocci
  4.    Streptococci
 Discuss Question
Answer: Option A. -> Staphylococci
Question 235. . Cytoplasmic inclusions include
  1.    ribosomes
  2.    mesosomes
  3.    fat globules
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 236. . The structure responsible for motility of bacteria is
  1.    pilli
  2.    flagella
  3.    sheath
  4.    capsules
 Discuss Question
Answer: Option B. -> flagella
Question 237. . Chemotaxis is a phenomenon of
  1.    swimming away of bacteria
  2.    swimming towards a bacteria
  3.    swimming away or towards of bacteria in presence of chemical compound
  4.    none of the above
 Discuss Question
Answer: Option C. -> swimming away or towards of bacteria in presence of chemical compound
Question 238. . The cocci which forms a chain is
  1.    Streptococci
  2.    diplococci
  3.    Staphylococci
  4.    Tetracocci
 Discuss Question
Answer: Option A. -> Streptococci
Question 239. . The arrangement, in which flagella are distributed all round the bacterial cell, is known as
  1.    lophotrichou
  2.    amphitrichous
  3.    peritrichous
  4.    monotrichous
 Discuss Question
Answer: Option C. -> peritrichous
Question 240. . Which of the following has peptidoglycan as a major constituent of cell wall?
Which of the following has peptidoglycan as a major constituent of cell wall?
  1.    Gram-negative bacteria
  2.    Gram-positive bacteria
  3.    Fungi
  4.    None of these
 Discuss Question
Answer: Option B. -> Gram-positive bacteria

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