Answers: DNA Manipulation

Q3. Bacterial plasmids can be used in the cloning of foreign genes. Explain why plasmids can be used for this purpose.
  • The plasmids replicate within bacterial cells and, with each replication, new copies of the gene are made
  • The bacterial cells replicate, increasing the number of bacterial cells
  • After each bacterial cell replication, the plasmid again multiplies within the new bacterial cells.