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Generally most of the bacteria have the ability to take up DNA which is present freely in the environment. This is called Competence. It is genetically acquired. But some cells do not exhibit natural competence and they are treated with a suitable chemical like CaCl2 to make their cell wall relatively permeable to DNA. We can make any cell competent in vitro and introduce our desired gene which is taken up by the competent cell.

To test the efficiency of our treatment, we may introduce a marker gene like gene for antibiotic resistance such as Tetracyclin onto the desired gene and grow the treated cells on Tetracyclin medium so that only the cells that have taken up the DNA survive.

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Q: What is the definition of competent cells and how it can help to make a transformation more efficient during the cloning of desired gene?
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Related questions

What does transformation and competent and plasmid mean?

transformation is to introduce a foreign DNA segment to a competent cell. competent cell means a cell that have ability to take a foreign DNA. plasmid is genetic element that one can integrate a DNA segment. it has its promoter, resistance gene, multiple cloning site...


The host organism into which a cloning vector is placed is called?

Competent cells if i not mistaken


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True, gene cloning, is an efficient way of producing large numbers a gene. These genes can be cloned repeatedly, at a rather as a rather efficient means.


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True


Definition of gene cloning?

Gene cloning is the replication of DNA fragments by the use of a self-replicating genetic material. Unlike reproductive cloning, which replicates an entire organism, gene cloning duplicates only individual genes of an organism's DNA.


What is the definition of a Cell line?

The definition of a Cell Line is a culture developed from a single cell in which the makeup of the cells is uniform. essentially it is part of cloning of cells.


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The definition of biotechnology varies, but a simple definition is the use of organisms by man. One example of biotechnology is cloning. We have been cloning plants for centuries. Each time a leaf is excised from a violet plant and placed in soil to grow a new plant, cloning has occurred. Today, we are not only doing the physical manipulation at the visual level but also on the molecular level. In modern or molecular biotechnology, we physically select the desired characteristic at the molecular level and add it to the organism's genetic makeup.


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What is a kids definition of cloning?

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