Recombinant plasmids are added to a bacterial culture that has been pretreated with _________________ ions.(a) iodine(b) magnesium(c) calcium(d) ferricI had been asked this question by my school principal while I was bunking the class.Asked question is from Techniques topic in section Techniques in Cell Biology of Cell Biology

Recombinant plasmids are added to a bacterial culture that has been pr

1.	Recombinant plasmids are added to a bacterial culture that has been pretreated with _________________ ions.(a) iodine(b) magnesium(c) calcium(d) ferricI had been asked this question by my school principal while I was bunking the class.Asked question is from Techniques topic in section Techniques in Cell Biology of Cell Biology
Answer» Right choice is (c) calcium The explanation: RECOMBINANT PLASMIDS are added to a BACTERIAL cell culture that is COMPETENT for taking up the plasmids from the medium. A culture can be made competent by treatment with calcium ions.

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