What is the function of a selectable marker?

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(A) selectable marker is a gene introduced into a cell,especially a bacterium or to cells in culture,that confers a trait suitable for artificial sele

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Allows the growth of transformants

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(A) selectable marker is a gene introduced into a cell,especially a bacterium or to cells in culture,that confers a trait suitable for artificial selection. In recombinant $DNA$ technology,selectable markers (such as antibiotic resistance genes like $amp^R$,$tet^R$,etc.) are used to identify and eliminate non-transformants and selectively permit the growth of the transformants. Therefore,the correct function is to allow the growth of transformants while inhibiting the growth of non-transformants.

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