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gladu [14]
2 years ago
6

During calcium chloride transformation of bacteria, during which step does plasmid DNA enter the bacterial cells?

Biology
1 answer:
zhannawk [14.2K]2 years ago
4 0
Positively charged calcium ions attract both the negatively charged DNA backbone and the negatively charged groups in the LPS inner core. The plasmid DNA can then pass into the cell upon heat shock, where chilled cells (+4 degrees Celsius) are heated to a higher temperature (+42 degrees Celsius) for a short time.
I hope this helped dear:)
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