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Biotechnology (GATE)

Comprehensive biotechnology quiz covering biochemistry, microbiology, process biotechnology, molecular biology, genetics, biomolecules, enzymes, and recombinant DNA technology.

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following proteins have the least number of polypeptide chains?

  1. Chymotrypsin
  2. Haemoglobin
  3. Hexokinase
  4. Glutamine synthetase
  5. Ribonuclease A
Question 2 Multiple Choice (Single Answer)

__________________ are enzymes which cleave DNAs at specific base sequences.

  1. Type II restriction endonucleases
  2. Polynucleotide kinase
  3. Terminal transferase
  4. Exonuclease III
  5. Bacteriophage λ exonuclease
Question 3 Multiple Choice (Single Answer)

Choose the option that shows the correct pairing of the diseases with their corresponding causative organisms.

 
P. Chagas disease i. Trypanosoma gambiense
Q. Sleeping sickness ii. Plasmodium falciparum
R. Malaria iii. Yersinia pestis
S. Plague iv. Trypanosoma cruzi
  1. P - i, Q - iv, R - iii, S - ii
  2. P - i, Q - iv, R - ii, S - iii
  3. P - ii, Q - iv, R - iii, S - i
  4. P - iv, Q - i, R - ii, S - iii
  5. P - iv, Q - i, R - iii, S - ii
Question 4 Multiple Choice (Single Answer)

Which of the following is a steroid hormone?

  1. Insulin
  2. Glucagon
  3. Epinephrine
  4. Testosterone
  5. Triiodothyronine
Question 5 Multiple Choice (Single Answer)

___________________ utilises tetrahydrofolate as a prosthetic group.

  1. Pyruvate dehydrogenase
  2. Monoamine oxidase
  3. Acetyl CoA carboxylase
  4. Thymidylate synthase
  5. Methylmalonyl mutase
Question 6 Multiple Choice (Single Answer)

Choose the option that shows the correct pairing of the products with their corresponding microorganisms.

 
P. Citric acid i. Micromonospora purpurea
Q. Polyhydroxyalkonates ii. Zymomonas mobilis
R. Gentamycin iii. Aspergillus niger
S. Ethanol iv. Ralstonia eutropha
  1. P - i, Q - ii, R - iii, S - iv
  2. P - ii, Q - iii, R - i, S - iv
  3. P - iii, Q - iv, R - i, S - ii
  4. P - iii, Q - i, R - iv, S - ii
  5. P - iv, Q - ii, R - iii, S - i
Question 7 Multiple Choice (Single Answer)

Match the hemoproteins in column I with their function in column II.

 
Column I 
        </strong>|<strong>Column II</strong>|

|P. Haemoglobin|1. Degradation of hydrogen peroxide|
|Q. Myoglobin|2. Carrying of oxygen molecules to muscle tissues|
|R. Cytochromec|3. Transport of oxygen in blood|
|S. Catalase|4. Involvement in electron transport chain|

  1. P - 1; Q - 2; R - 3; S - 4
  2. P - 2; Q - 1; R - 4; S - 3
  3. P - 3; Q - 2; R - 4; S - 1
  4. P - 3; Q - 4; R - 1; S - 2
  5. P - 4; Q - 3; R - 2; S - 1
Question 8 Multiple Choice (Single Answer)

Arrange the following organisms in increasing order of genome size.

  1. Borrelia burgdorferi
    2. Helicobacter pylori
    3. Mycoplasma pneumoniae
    4. Treponema pallidum
  1. 1 < 2 < 3 < 4
  2. 1 < 3 < 2 < 4
  3. 2 < 4 < 1 < 3
  4. 3 < 4 < 1 < 2
  5. 3 < 1 < 4 < 2
Question 9 Multiple Choice (Single Answer)

Cyanogen bromide catalyses the hydrolysis of only those peptide bonds in which

  1. the carbonyl group is contributed by Lys or Arg residue
  2. the carbonyl group is contributed by Phe, Trp or Tyr residue
  3. the carbonyl group is contributed by Met residue
  4. the amino group is contributed by Phe, Trp or Tyr residue
  5. All of the above
Question 10 Multiple Choice (Single Answer)

Which of the following enzymes is used in recombinant DNA technology for making a DNA copy of an RNA molecule?

  1. DNA ligase
  2. DNA polymerase I
  3. Reverse transcriptase
  4. Terminal transferase
  5. Alkaline phosphatase
Question 11 Multiple Choice (Single Answer)

Which of the following is a set of heteropolysaccharides?

  1. Cellulose, Chitin, Dextran
  2. Cellulose, Dextran, Agarose
  3. Peptidoglycan, Agarose, Chitin
  4. Peptidoglycan, Agarose, Hyaluronate
  5. Peptidoglycan, Hyaluronate, Dextran
Question 12 Multiple Choice (Single Answer)

Which of the following is an example of lyases?

  1. Lactate dehydrogenase
  2. Nucleoside monophosphate kinase
  3. Fumarase
  4. Triose phosphate isomerase
  5. Chymotrypsin
Question 13 Multiple Choice (Single Answer)

Zn2+ serves as a cofactor for

  1. arginase
  2. hexokinase
  3. carbonic anhydrase
  4. glutathione peroxidise
  5. pyruvate kinase
Question 14 Multiple Choice (Single Answer)

Which of the following 'disease: causative agent' matches is INCORRECT?

  1. Tuberculosis: Mycobacterium
  2. Tetanus: Clostridium
  3. Botulinum: Treponema
  4. Bacillary dysentery: Shigella
  5. Cholera: Vibrio
Question 15 Multiple Choice (Single Answer)

Match enzymes in column I with respective coenzymes in column II.

 
Column I 
        </strong>|<strong>Column II</strong>|

|P. Pyruvate carboxylase|1. Biotin|
|Q. Pyruvate dehydrogenase|2. Thiamine pyrophosphate|
|R. Glycogen phosphorylase|3. Pyridoxal phosphate|
|S. Lactate dehydrogenase|4. Nicotinamide adenine dinucleotide|

  1. P - 1; Q - 2; R - 3; S - 4
  2. P - 1; Q - 3; R - 2; S - 4
  3. P - 2; Q - 1; R - 3; S - 4
  4. P - 2; Q - 1; R - 4; S - 3
  5. P - 3; Q - 2; R - 4; S - 1
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