NEET 2024 Re · Class 12

Biotechnology: Principles and Processes

Which of the following are correct about EcoRI?

  1. (A)Cut the DNA with blunt end
  2. (B)Cut the DNA with sticky end
  3. (C)Recognise a specific palindromic sequence
  4. (D)Cut the DNA between the base G and A when encounters the DNA sequence 'GAATTC'
  5. (E)Exonuclease

The NCERT line that answers it

Verbatim line

EcoRI cuts the DNA between bases G and A only when the sequence GAATTC is present in the DNA

Chapter
Biotechnology: Principles and Processes
Section
9.2 Tools of Recombinant DNA Technology

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

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'EcoRI cuts the DNA between bases G and A only when the sequence GAATTC is present in the DNA', which directly matches option D's claim about cutting between G and A when encountering GAATTC.

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Question text is reproduced from the published NEET 2024 Re paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.