Multiple choice

Which of the following plasmids is used to transfer genes in plants?

  1. Ti plasmid

  2. P BR 322

  3. ECOR 1

  4. P UC 18
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A Correct answer
Explanation

Ti (Tumor-inducing) plasmid from Agrobacterium tumefaciens is the most widely used vector for plant genetic engineering. It naturally contains T-DNA that can be transferred into plant genomes and has been modified into a disarmed vector system. The other plasmids (pBR322, pUC18) are E. coli cloning vectors, and ECOR1 is a restriction enzyme.

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