In the name of ALLAH, the most beneficient, the most merciful

Biosensors (BT505)

Multiple Choice Questions (MCQs)

Objective Questions

  1. Antibody lgG, has ________ high affinity binding sites.

    1. 2
    2. 3
    3. 4
    4. 5
  2. The optimal pH of enzyme horseradish peroxidase is ________.

    1. 4.0-4.5
    2. 5.0-5.5
    3. 6.0-6.5
    4. 7.0-7.5
  3. An increase of one base pair in DNA-PNA duplex increases the thermal stability of the complex at least upto ________°C, as compared to DNA/DNA hybrids.

    1. 1
    2. 2
    3. 3
    4. 4
  4. In ELISA, the modified form of ________ is used for immobilization.

    1. Polystyrene
    2. Polythene
    3. Polyvinyl chloride
    4. Neoprene
  5. ________ are the chief protein components of chromatin, acting as spools around which DNA winds, and playing a role in gene regulation.

    1. Histone
    2. Biotin
    3. Riboflavin
    4. Albumin
  6. ________ are oligonucleotide hybridization probes that can report the presence of specific nucleic acids in homogeneous solutions.

    1. Molecular Beacons
    2. Biophotonics
    3. Aptamers
    4. Epitope
  7. The baseline lactate level in blood ranges from ________ mmol/l at rest.

    1. 0.5 to 1.5
    2. 1.5 to 2.0
    3. 2.5 to 3.0
    4. 4.0 to 4.5
  8. Histones are abundant in ________.

    1. Glutamine, Alanine
    2. Lysine, Arginine
    3. Valine, Proline
    4. Valine, Lysine
  9. ________ plays main role in the evaporation of water.

    1. Flower
    2. Vascular Bundles
    3. Stomata
    4. Carpel
  10. When developing a new ELISA for a specific antigen, the first step is to ________ the ELISA.

    1. Optimize
    2. Immobilize
    3. Adsorb
    4. Capping