Question

Which of the following process will make the bacterial cells more competent so that they can take up plasmid DNA?

• A. Bacterial cells are treated with specific concentrations of $Ca^{2 +}$
• B. Bacterial are placed in hot water $\left( > 50^{o}C \right)$
• C. Bacterial are kept in most environment
• D. Bacterial are kept in dry environment

Answer 1

Answer: (A)

Bacterial cells are treated with specific concentrations of $Ca^{2 +}$