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Model Paper 3 — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYModel Paper 31 Mark
MCQ
Restriction enzyme was discovered by-
  • A
    Berg
  • B
    Smith and North
  • C
    Waxman
  • D
    Alexander flemming
✓

Answer

self

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