Biology, asked by akayi3542, 1 year ago

Making competent cells and theory behind each step

Answers

Answered by ItsmeSRC11
0
Hey there.!

As DNA is a hydrophilic molecule, it can't pass through the membranes.

they must be treated insuch a way that, bacteria takeup DNA on their own..let's see how this can be possible.

Inorder to make bacterial cells capable to take up DNA, they are treated with a divalent cation such as, Ca^+2.

This increases the efficiency with which DNA entera the bacterial cell.

rDNA can be sent into such type of cells by following certian steps:
- incubating the cells with DNA on ice.
- placing them briefly at 42°C (heat shock)
-Placing them back again on ice.

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HOPE THIS HELPS YOU
BE BRAINLY
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