What is a selectable marker in recombinant technology?

What is a selectable marker in recombinant technology?
  1. A gene that provides optimal growth conditions
  2. A gene encoding for a specific product
  3. A gene for resistance to an antibiotic
  4. A gene used for purifying the desired protein

Solution

A selectable marker in recombinant technology is a gene for resistance to an antibiotic, which allows for selection of transformed cells in the presence of the antibiotic.

Asked in: NCERT

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