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For the bacterial transformation lab, what was the purpose of mixing calcium chloride solution with bacteria,...

For the bacterial transformation lab, what was the purpose of mixing calcium chloride solution with bacteria, and later performing a heat shock step after you've allowed the bacteria to sit on ice?

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Answer #1

Calcium chloride help in binding of exogenous dna to bacterial cell as it resist repulsion between them.

Then we give high temperature for creating small pore in bacterial membrane and then give ice cold condition for healing of this membranes.

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