Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
If one strand of DNA has the sequence ATCGTATG, the sequence in the complementary strand would be
ChemistryBiomoleculesNEET
Options:
  • A TAGCTTAC
  • B TCACATAC
  • C TAGCATAC
  • D TACGATAC
Solution:
2802 Upvotes Verified Answer
The correct answer is: TAGCATAC
Because of size and geometries of the bases, the only possible pairings in DNA are between G (guanine) and C (cytosine) through three H-bonds and between A (adenine) and T (thymine) through two H-bonds. Hence,

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.