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Get Answers to all your Questions
(a) Why must a cell be made 'competent' in biotechnology experiments? How does calcium ion help in doing so?
(b) State the role of 'biolistic gun' in biotechnology experimnets.
Answers (1)
(a)
- To take up the DNA from the external medium.
- Divalent calcium ions increase the efficiency of DNA entering the cell through pores in the cell wall.
(b) To introduce alien DNA into the plant cell by bombarding them with high velocity microparticles.
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