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A pyrimidine ring and an imidazole ring.

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How many rings do pyrimidines have in their molecular structure?

1


How many rings do pyrimides have?

Pyrimidines have a single ring in their molecule.


How do purines differ from pyrimidines?

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.


Which one is purines and pyrimidines are bigger?

Purines are larger molecules compared to pyrimidines. Purines consist of a six-membered ring fused to a five-membered ring, while pyrimidines are single-ring structures.


How many rings do pyrimidines have?

Pyrimidines have a single ring and are part of the basic building blocks for RNA and DNA.


Name for small bases containing one carbon nitrogen ring?

These rings are known as pyrimidines.


Name for large bases containing two carbon-nitrogen rings?

The large bases that have two carbon-nitrogen rings are called purines.


How many purines and pyrimidines are present in the DNA molecule?

There are two purines (adenine and guanine) and two pyrimidines (cytosine and thymine) present in the DNA molecule.


What are the two nitrogen bases that are single ring structures?

Thymine is a single-ringed nitrogenous base.


Which nitrogen bases in DNA are pyrimidines?

Cytosine, uracil and thymine are the three pyrimidines.


What Contains pyrimidines?

Various medications and dietary supplements contains pyrimidines. Pyrimidines are important components to HIV therapeutics, the thiamine vitamin, and the narcotic barbitone.


How is Presence of purines and pyrimidines in DNA found?

Adenine and Guanine are purines, and Thymine and Cytosine are pyrimidines.