Cytosine is said to be one of the four bases in both of the nucleic acid being DNA and RNA and is denoted with the alphabet C.
With regards to the question is cytosine a pyrimidine, the answer is a yes. The base of cytosine is derived from the pyrimidine that is found in the nucleic acids and is a component that helps in getting the genes controlled for all of the living cells and in also a few of the coenzymes.
The structure of this base cytosine along with the rest is usually preferred to be taken as a ring of nine and double membrane structure adenine and the guanine as the base for purine and the structure of thymine for the six membrane ring line being single and uracil and cytosine are said to be pyrimidine.
The principal pyrimidine are said to be thymine, uracil and cytosine that consists of the uridine. Along with thymidine and the cytidine ribonucleosides and all other corresponding deoxynulceotides. The building blocks of DNA are said to be both thymine and cytosine while uracil and cytosine are seen in only RNA.
Cytosine being one of the four bases of building blocks for RNA and DNA is also one among the four nucleotides that are seen in both of the strands’ and each of the cytosine base makes up a portion of a code. This base also has the ability to hold a unique feature that helps in binding of the double helix and is seen opposite to guanine which is also another base. The base of guanine seems to pair up with cytosine and thymine pairs with adenine in DNA.
Cytosine can be found as part of DNA, as part of RNA, or as a part of a nucleotide. As cytidine triphosphate (CTP), it can act as a cofactor to enzymes, and can transfer a phosphate to convert adenosine diphosphate (ADP) to adenosine triphosphate (ATP). In DNA and RNA, cytosine is paired with guanine. Cytosine and thymine are pyrimidines which are structures composed of a single six-sided ring.
Why is cytosine a pyrimidine?
Cytosine is a derivative of pyrimidine and has an aromatic ring that is heterocyclic and have two of the substituents linked and is seen in both DNA and RBNA.
With is cytosine a pyrimidine, it is a yes. The structure of this general cytosine with the remainder is generally preferred as a nine-ring structure, and the adenine and guanine double membrane is the basis for the purine and thymine structures for the six-loop membrane, and uracil and cytosine are given is being pyrimidine.
Any base which is same t that if the look of benzene which is a structure of six member ring ad contains the bases of thymine, uracil and cytosine as the bases acted for RNA and DNA can be said to be a pyrimidine. It helps in getting the genes to control the materials in the living cells.
This base also has the ability to hold a unique feature that helps in binding of the double helix and is seen opposite to guanine which is also another base. The base of guanine seems to pair up with cytosine and thymine pairs with adenine in DNA. The paring of the bases are done with the help of hydrogen bonds that are said to be interstrand.
Adenine is said to make hydrogen bond that is two in number along with uracil and cytosine makes up three bonds of hydrogen with only the base guanine. Thus we can all say that the bases of guanine, cytosine and adenine are found in both RNA and DNA. So these are the common bases of nitrogen in both of the nucleic acids.
Cytidine is said to be a nucleoside of cytosine and in the base pairing model of Watson and Crick, it seem to make a hydrogen bond with guanine being three in number. The chemical formula for this is C4H5N3O and has molar weight of 111.1 g with melting point being 320 degree Celsius and decomposes at 593 K. Cytosine can be said to be a part of either DNA or a part of RNA or a portion of nucleotide.
The bases of nitrogen that are purine are feature but the presence of a single group of amino with adenine being at the sixth place of carbon and guanine sitting at the second carbon place. Just like this, the cytosine, thymine and the uracil have a simple structure of ring which is made from pyrimidine and thus these are the derivative of pyrimidine bases. Guanine, an organic compound belonging to the purine group, a class of compounds with a characteristic two-ringed structure
Why cytosine bonds with guanine?
The four of the bass in DNA and RNA are supposed to pair uo with each other according to the system of complimentary bond pairing and thus cytosine pairs up with the base of guanine in both.
Cytosine and guanine link up together and make a base pair as the free bond of hydrogen donor and the acceptor of hydrogen bond link up together with each other within space. Cytosine and guanine are said to be complementary to each.
In the basic pairing formula the thymine makes sup with adenine and the rest guanine binds with cytosine. There is a shift in the place of the nucleotides that makes a wobble I between the general guanine and normal thymine. Thus they are paired together. Within the DNA molecule, guanine bases located on one strand form chemical bonds with cytosine bases on the opposite strand. The sequence of four DNA bases encodes the cell’s genetic instructions.
The paring of both the bases is done by lining them up with three bonds of hydrogen. This makes a difference in the power in between the sets of Watson and Crick bases. Cytosine and guanine links up and thus has strong base pair than the adenine and thymine bond in DNA. Cytosine and guanine form three hydrogen bonds between each other, while tyrosine and adenine form two hydrogen bonds.
The guanine paired with the cytosine has three hydrogen bonds. This makes the difference in strength between the two sets of Watson and Crick basses. Base pairs associated with guanine and cytosine are stronger than those associated with thymine and adenine in DNA. Within the DNA molecule, guanine bases located on one strand form chemical bonds with cytosine bases on the opposite strand.