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

Biosensors (BT505)

Multiple Choice Questions (MCQs)

Objective Questions

  1. Histones are abundant in ________.

    1. Glutamine, Alanine
    2. Lysine, Arginine
    3. Valine, Proline
    4. Valine, Lysine
  2. ________ 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
  3. In ELISA, the modified form of ________ is used for immobilization.

    1. Polystyrene
    2. Polythene
    3. Polyvinyl chloride
    4. Neoprene
  4. ________ plays main role in the evaporation of water.

    1. Flower
    2. Vascular Bundles
    3. Stomata
    4. Carpel
  5. 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
  6. Antibody lgG, has ________ high affinity binding sites.

    1. 2
    2. 3
    3. 4
    4. 5
  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. ________ 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
  9. When developing a new ELISA for a specific antigen, the first step is to ________ the ELISA.

    1. Optimize
    2. Immobilize
    3. Adsorb
    4. Capping
  10. 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