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MODEL PAPER 7 — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYMODEL PAPER 71 Mark
MCQ
The most important feature in a plasmid to serve as a vector in gene cloning experiment is:
  • A
    Its size
  • B
    Presence of a selectable marker
  • C
    Origin of replication (ori)
  • D
    Presence of sites for restriction endonuclease
✓

Answer

Origin of replication (ori)
Explanation: Origin of replication (ori) is a sequence from where replication starts and any piece of DNA, when linked to this sequence, can be made to replicate within the host cells. This sequence is also responsible for controlling the copy number of the linked DNA.

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