In genetic engineering, the antibiotics are used

In genetic engineering, the antibiotics are used
  1. as selectable markers
  2. to select healthy vectors
  3. as sequences from where replication starts
  4. to keep the cultures free of infection

Solution

The integration of selectable marker gene along with a gene of interest is helpful for identifying transformed cells. However, the presence of slectable marker gene for antibiotic resistance in a genetically modified organism that is released into enviornment is not desirable.

Asked in: NEET 2012 (Mains)

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