Multiple choice

Which of the following vector is used for obtaining single stranded copies of cloned of DNA ?

  1. phage M 13 vectors

  2. EMBL3

  3. cosmid vectors

  4. ARS vectors

  5. shuttle vectors
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A Correct answer
Explanation

is used for obtaining single stranded copies of cloned of DNA which is suited for DNA sequences.They are derived from the 6.4kb genome  of the filamentous  bacteriophage M 13.This phage has a single stranded linear  DNA genome in phage particle which then converts into a double stranded circular intermediate in host cells. 

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