question archive There are three between cytosine and guanine
Subject:ChemistryPrice: Bought3
There are three between cytosine and guanine.
1)One between the NH? group of cytosine and the C=O group in guanine
2)One between the pyridine N atom in cytosine and the N-H group in guanine
Note: The G-C connections in DNA are stronger than A=T connections which consist of just two hydrogen bonds. Ultraviolet radiation can break A=T connections and neighboring Thymine bases can sometimes form Thymin-Thymine dimers which can lead to mutations in future rounds of DNA replication.