Complementary base pairs

From The School of Biomedical Sciences Wiki
Revision as of 18:36, 23 October 2017 by 160365069 (talk | contribs)
Jump to navigation Jump to search

Complementary base pairing is the phenomenon where in DNA guanine always hydrogen bonds to cytosine and adenine always binds to thymine. 

The bond between guanine and cytosine shares three hydrogen bonds compared to the A-T bond which always shares two hydrogen bonds. 

Function

Complementary base pairing is important in DNA as it allows the base pairs to be arranged in the most energetically favourable way; it is essential in forming the helical structure of DNA.

It is also important in replication as it allows semi conservative replication[1]. 

References

  1. ↑ Albert B, Johnson A, Lewis J, Morgan D, Raff M, Roberts K, Walter P. Molecular Biology of the Cell. 6th Ed, Abingdon: Garland Science, Taylor & Francis Group, LLC, 2015.


Retrieved from "https://teaching.ncl.ac.uk/bms/wiki//index.php?title=Complementary_base_pairs&oldid=17940"