NEET 1995 · Class 12

Biotechnology: Principles and Processes

The restriction enzymes are used in genetic engineering, because

  1. (A)they can cut DNA at specific base sequence
  2. (B)they are nucleases that cut DNA at variable sites
  3. (C)they can degrade harmful proteins
  4. (D)they can join different DNA fragments

The NCERT line that answers it

Verbatim line

The cutting of DNA at specific locations became possible with the discovery of the so-called 'molecular scissors'— **restriction enzymes**.

Chapter
Biotechnology: Principles and Processes
Section
9.1 PRINCIPLES OF BIOTECHNOLOGY
Page
3
Words matched
15 of 19

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

75, emb=0.6194, combined=0.6716). Verified: high — The span explicitly states that restriction enzymes cut DNA at specific locations, which directly matches option A's claim that they cut DNA at specific base sequences.

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