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

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 9. biotechnology principlas and process1 Mark
MCQ
Plasmid are suitable vectors for gene cloning because
  • A
    These are small circular $DNA$ molecules, which can integrate with host chromosomal $DNA$
  • ✓
    These are small circular $DNA$ molecules with their own replication origin site
  • C
    These can shuttle between prokaryotic and eukaryotic cells
  • D
    These often carry antibiotic resistance genes
✓

Answer

Correct option: B.
These are small circular $DNA$ molecules with their own replication origin site
b
Plasmid is an extrachromosomal genetic of $DNA$ that is capable of replicating independently of host chromosome. It forms the basis of many cloning vectors used in genetic engineering

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