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Adenine and guanine are the two purines in the DNA and thymine and cytosine are two pyrimidines.
Nitrogenous bases, either purines or pyrimidines.
They are the nitrogen bases that are attached to RNA and DNA. In DNA, adenine and guanine are purines and thymine and cytosine are pyrimidines. In RNA, thymine is replaced by pyrimidine uracil.
purines, pyrimidines, nucleotides and nitrogen bases.
The large bases that have two carbon-nitrogen rings are called purines.
Nucleic acids
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.
Adenine and Guanine are purines, and Thymine and Cytosine are pyrimidines.
4 A pyrimidine always pairs with a purine, so half of the bases will be pyrimidines and half will be purines.
Purines and pyrimidines are nitrogen bases found in DNA and RNA .They are nitrogen containing heterocyclic compounds .Purines are large double ringed while pyrimidines are small single ringed .
Purines bond to pyrimidines in nucleic acid DNA .
No. The physical structure does not allow purines to pair with other purines. Purines can only be paired with Pyrimidines.
Adenine and guanine, being purines ( double ringed ) always bond with thymine and cytosine, single ringed pyrimidines.
A purine has a double ring, while a pyrimidine has a single ring. Also purines are adenine and guanine, and the pyrimidines are thymine and cytosine.
Pyrimidines or Purines
Sir David Dashery