Bacterial cells take up _, especially, if they are treated with calcium chloride to make them more permeable.
Correct answer: C. Recombinant plasmid
- A. Recombinant DNA
- B. Plasmid
- C. Recombinant plasmid
- D. Extra chromosomal DNA
Explanation
Aqueous calcium chloride is used in genetic transformation of cells by increasing the cell membrane permeability, inducing competence for DNA uptake (allowing DNA fragments to enter the cell more readily).
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Biotechnology in health care applies biological organisms, cells or enzymes to diagnose and treat disease. The subject includes recombinant DNA, genetically engineered insulin, vaccines, antibiotics, monoclonal antibodies, gene therapy and techniques such as polymerase chain reaction, while distinguishing therapeutic applications from agricultural and industrial biotechnology.
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