Question

Which of the following is a characteristic of DNA biosensors?

(a) Detects the change in light adsorption

(b) Detects the photon out for luminescent

(c) Detects the movement of electrons between electrodes

(d) Formation of DNA recognition layer

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Answer 1

The correct option is (d) Formation of DNA recognition layer

Easy explanation: Steps involved in electrochemical DNA hybridization biosensors, Formation of the DNA recognition layer, actual hybridization event, the transformation of the hybridization event into an electrical signal. Types of DNA biosensors are electrodes, chips, crystals.