According to HowStuffWorks, cytosine always pairs with guanine. The other two bases that pair together are thymine and adenine. These four bases make up nucleotides and are the building blocks of nucleic acids like DNA.Know More
Cytosine is a nitrogenous base called a pyrimidine, states HowStuffWorks. Of the four bases, two are pyrimidines, single-ringed structures, and two are purines, double-ringed structures. When they bond, one pyrimidine always pairs with one purine.
HowStuffWorks goes on to explain that each nucleotide has a nitrogenous base, like cytosine, a sugar and a phosphate group. One nitrogenous base is paired with another that has its own phosphate and sugar. Then the phosphate molecule in each nucleotide binds to the sugar in the next nucleotide, which creates a long strand.
The National Center for Biotechnology Information says that cytosine has the molecular formula of C4H5N3O. Cytosine was first discovered in 1894 by Albrecht Kossel, according to Wikipedia. It is an important part of DNA and RNA, but it is also a part of converting adenosine diphosphate to adenosine triphosphate. The cytosine gives a phosphate to ADP for the conversion to ATP, a process that is an important component of energy cycle in cells, according to Brooklyn College.Learn more about Molecular Biology & DNA
In the rules of DNA base pairing, cytosine always pairs with guanine, and adenine always pairs with thymine. The complementary shape between the two bases that form a pair allows for them to form hydrogen bonds.Full Answer >
The "steps" or "rungs" of a DNA molecule are made up of four nucleobases, including adenine (A), cytosine (C), guanine (G) and thymine (T). These bases are arranged in particular pairs. A only bonds with T and vice versa, while C only pairs with G and vice versa.Full Answer >
The four bases found in RNA are guanine, cytosine, adenine and uracil. Typically, these four bases are abbreviated and listed as G, C, A and U. RNA, which stands for ribonucleic acid, is a molecule that is made up of one or more nucleotides.Full Answer >
Adenine always pairs with thymine when forming chains of DNA. In RNA, a similar molecule to DNA that is also used to encode genetic information, adenine always pairs with uracil.Full Answer >