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Question: Answered & Verified by Expert
A gene whose expression helps to identify transformed cell is known as
BiologyBiotechnology - Principles and ProcessesNEETNEET 2017
Options:
  • A Selectable Marker
  • B Vector
  • C Plasmid
  • D Structural gene
Solution:
2311 Upvotes Verified Answer
The correct answer is: Selectable Marker

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.

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