Answer: Divalent calcium ions.
- A Glucose solution
- B Distilled water
- C Divalent calcium ions
- D Sodium chloride crystals
Correct answer: C. Divalent calcium ions
Explanation: Treating cells with a specific concentration of a divalent cation such as calcium increases the efficiency with which DNA enters the bacterium through pores in its wall.
Recombinant DNA technology: a gene of interest and plasmid are cut by the same restriction enzyme, ligated into a recombinant plasmid, and introduced into a host cell.
Concept context
Recombinant DNA, GMOs, PCR, CRISPR, and biotechnology applications. Growing importance in NEET.
Read the full Biotechnology: Principles and Processes notes →