Biology Biotechnology Principles and Processes Principles of Biotechnology and Restriction Enzymes Single Correct MCQ
Published on: August 12, 2026

Genetic engineering has been made possible due to

A
Observation of DNA under electron microscope
B
We can break DNA at specific points by DNases
C
Availability of restriction endonucleases in purified form
D
Knowledge of transduction.

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The correct answer is:
C

Genetic engineering became possible mainly due to the discovery of restriction endonucleases, which act as molecular scissors and can cut DNA at specific sequences in a controlled manner in vitro.

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