Biology, asked by Moana5299, 11 months ago

Bacteria which are able to uptake dna are called "competent" and are made so by treatment with calcium chloride in the early log phase of growth. The bacterial cell membrane is permeable to chloride ions, but is non-permeable to calcium ions. As the chloride ions enter the cell, water molecules accompany the charged particle. This influx of water causes the cells to swell and is necessary for the uptake of dna. The exact mechanism of this uptake is unknown.

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Answered by AashitaShree
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