Multiple choice

Which of the following cannot be used as a vector?

  1. Bacteriophage

  2. Plasmid

  3. Bacterium

  4. YAC

  5. Retrovirus

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bacteria are used as host cells, not as vectors. They are large in size and contain a single circular chromosome. However, it provides an ideal environment for cloning of rDNA irrespective of vectors which may be a bacteriophage, plasmid, YAC or BAC.