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Why must a ce...

Question

Why must a cell be made 'competent' in biotechnology experiments? How does calcium ion help in doing so?

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Solution

It is necessary to make a cell competent in order to enhance the efficiency of the cell to take up foreign DNA easily.
When the cell is treated with a specific solution of divalent cation calcium. It increases the efficiency of the cell to take up the foreign DNA through the pores in the cell wall.

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