Published by:
CGP EDU Academic Team
Published on: August 11, 2026
‘E’ is

Text Solution
Verified by ExpertsThe correct answer is:
B
In pBR322:
tetR (tetracycline resistance gene) occupies the larger right-side region and contains sites like BamHI, HindIII, Clal, Sall.
ampR (ampicillin resistance gene) occupies the left-side region and contains Pstl, Pvul.
In the figure, E marks the large right-side gene segment containing BamHI, so E = tetR gene.
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