Plasmids are used as vectors because they

  1. are proteins
  2. are found in nuclei
  3. cut DNA
  4. can carry a gene into a host cell and replicate independently
Answer

D) can carry a gene into a host cell and replicate independently

Plasmids carry genes into bacteria. AS & A Level Biology · Topic 19 Genetic Technology · 19.1 Principles of genetic technology

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