Q117 / 120 · NEET 2012 (Mains) · Zoology

In genetic engineering, the antibiotics are used

  • Correct answer
    A
    as selectable markers
  • B
    to select healthy vectors
  • C
    as sequences from where replication starts
  • D
    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.

Hence, the correct answer is option: 'A'.

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