thymine and cytosine
Thymine and cytosine are two nitrogen bases found in DNA. DNA is composed of thousands of nucleotides which are composed of one of four nitrogen bases. Both of these nitrogen bases are also pyrimidines, or they have one ring like structure See related link for more info on thymine, cytosine and pyrimidines.
Purines because purines have two rings where as pyrimidines have only one ring.
The two Purines are: Adenine and Guanine (A and G) The two Pyrimidines are: Cytosine and Thymine (C and T)
A pyrimidine ring and an imidazole ring.
Adenine and guanine are called purines because they are composed of the 2-ringed heterocyclic aromatic organic compound purine.
Thymine and cytosine are two nitrogen bases found in DNA. DNA is composed of thousands of nucleotides which are composed of one of four nitrogen bases. Both of these nitrogen bases are also pyrimidines, or they have one ring like structure See related link for more info on thymine, cytosine and pyrimidines.
Thymine & Adnine
Purines and pyrimidines are the building blocks of nucleic acids. The difference between purines and pyrimidines is in the number of carbon-rings present. Pyrimidines contain one carbon-ring while purines have two.
Purines because purines have two rings where as pyrimidines have only one ring.
Purines and pyrimidines
The two Purines are: Adenine and Guanine (A and G) The two Pyrimidines are: Cytosine and Thymine (C and T)
Thymine and Cytosine :)
c and t are pyrimidines, as is U
Adenine and guanine are the two purines in the DNA and thymine and cytosine are two pyrimidines.
Purines and Pyrimidines
There are three nucleobases in nucleic acids that are considered pyrimidines or pyrimidine derivatives. Uracil, cytosine, and thymine are the three pyrimidines.
Cytosine, uracil and thymine are the three pyrimidines.