Cytosine

Cytosine (C) is one of the four bases in DNA. It is also one of the two pyrimidine in DNA or RNA.
It forms complementary base pair with Guanine (G) along with three hydrogen bonds.
Cytosine (C) is one of the four bases in DNA. It is also one of the two pyrimidine in DNA or RNA.
It forms complementary base pair with Guanine (G) along with three hydrogen bonds.