A gene whose expression helps to identify transformed cell is known as

A gene whose expression helps to identify transformed cell is known as
  1. Selectable Marker
  2. Vector
  3. Plasmid
  4. Structural gene

Solution

In recombinant DNA technology, selectable markers help in identifying and eliminating non-transformants and selectively permitting the growth of the transformants.

In 1977, Bolivar and Rodriguez constructed the pBR322 plasmid vector. pBR322 is one of the most widely used E. coli cloning vectors. It contains ampicillin and tetracycline resistance genes that act as selectable markers.

Asked in: NEET 2017

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