There is no way to tell, since adenine is a purine base, but not the only one. Cytosine is a pyrimidine base. So it can be anything from 0 to 112!
Adenine and guanine molecules are two of the four nitrogenous bases that help make up the structure of DNA. They are also known as "purine" bases because they have a double ring structure. The purine bases are extremely important in DNA formation and they specifically pair up with the other two nitrogenous bases, known as the "pyrimidine" bases. Adenine molecules will always pair with thymine molecules and guanine molecules will always pair with cytosine.
4 nitrogenous bases make up a DNA. Cytosine,Guanine ,Thymine,& Adenine T goes with A C goes with G they are base pairs.
4 in DNA: Thymine, Cytocine, Guanine, and Adenine, and 4 in RNA: Adenine, Guanine, Cytosine, and Uracil.
Since there are 15 cytosine bases, we can conclude that there are 15 guanine bases. That gives us a total of 30 bases, subtract that from 40 and you have 10 bases left. So then there are 5 adenine bases because there are also 5 more thymine bases.
You question dosent really make sence, but if you are asking why are they not Purines and Pyramidines...They are Adenine and Guanine are Purines, and then you can realise that Thymine Cytosine and Uracil are all Pyramidines. If you are asking why are they only considered as purines and prymidines they are not there a many different types of Purines and Pyramidines but because when you study Biology and DNA is a topic that you cover frequently, they are noted but an example of a Purine is Uric Acid (essentially a product when it a Purine is broken down but still considered as a Purine). Hope this is helpful...
Adenine and guanine molecules are two of the four nitrogenous bases that help make up the structure of DNA. They are also known as "purine" bases because they have a double ring structure. The purine bases are extremely important in DNA formation and they specifically pair up with the other two nitrogenous bases, known as the "pyrimidine" bases. Adenine molecules will always pair with thymine molecules and guanine molecules will always pair with cytosine.
4. adenine,thymine, guanine ,cytosine
There are 4 bases in DNA: adenine, thymine, cytosine, and guanine.
4. adenine,thymine, guanine ,cytosine
There are only 4 nitrogenous bases in DNA. These are adenine, thymine, guanine, and cytosine. Adenine will only pair with thymine, and guanine will only pair with cytosine.
Bacterial DNA has four nitrogen bases; adenine, guanine, cytosine, and thymine.
4 nitrogenous bases make up a DNA. Cytosine,Guanine ,Thymine,& Adenine T goes with A C goes with G they are base pairs.
4 in DNA: Thymine, Cytocine, Guanine, and Adenine, and 4 in RNA: Adenine, Guanine, Cytosine, and Uracil.
Since there are 15 cytosine bases, we can conclude that there are 15 guanine bases. That gives us a total of 30 bases, subtract that from 40 and you have 10 bases left. So then there are 5 adenine bases because there are also 5 more thymine bases.
four:which areadeninethynimeguaninecytosine
Four nitrogenous bases. Adenine Guanine Cytosine Thymine
DNA is composed of four nitrogenous bases: Adenine, Thymine, Guanine, and Cytosine. Adenine and Guanine are purine bases, while Cytosine and Thymine are pyrimidine bases. Since purine bases mate with pyrimidine bases, Adenine attaches to Thymine, while Guanine attaches to Cytosine. As DNA is turned into RNA, the nitrogenous base Thymine is replaced with the base Uracil.