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STD 12 - 9. biotechnology principlas and process — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 9. biotechnology principlas and process4 Marks
MCQ
Restriction endonucleases are enzymes which
  • ✓
    Make cuts at specific positions within the $DNA$ molecule
  • B
    Recognize a specific nucleotide sequence for binding of $DNA$ ligase
  • C
    Restrict the action of the enzyme $DNA$ polymerase
  • D
    Remove nucleotides from the ends of the $DNA$ molecule
✓

Answer

Correct option: A.
Make cuts at specific positions within the $DNA$ molecule
a
Restriction endonuclease recognize a specific $DNA$ base sequence (recognition sequence, recognisation site, restriction sequence or restriction site having palindromic sequence) and cleaves both the strands of $DNA$ at or near that site. The enzyme cuts the $DNA$, generating restriction fragments with overhanging ends or blunt ends

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