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Cytosine, thymine and uracil are the pyrimidines in animal usage.

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What and what are two classes of nitrogenous bases?

The two classes of nitrogenous bases are purines and pyrimidines. Purines include adenine and guanine, while pyrimidines include cytosine, thymine, and uracil.


What are the two major groups of nitrogenous bases in RNA and DNA?

Purines and Pyrimidines


Which two groups are nitrogenous bases categorized?

Nitrogenous bases are categorized into two groups: pyrimidines (cytosine, thymine, and uracil) and purines (adenine and guanine).


Purines and pyrimidines are?

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 .


Which four nitrogenous bases are purines?

There are four nitrogenous bases. A, C, T and G A and G are Purines C and T are Pyrimidines. a useful rhyme to remember this is " Silver is PURe AG" - silver is abbreiviated to AG in the periodic table


What is the difference between the four types of nitrogenous bases?

The four types of nitrogenous bases are adenine (A), thymine (T), guanine (G), and cytosine (C). Adenine and guanine are purines, while thymine and cytosine are pyrimidines. Purines have a double-ring structure, while pyrimidines have a single-ring structure. This structural difference is important in how the bases pair with each other in DNA and RNA molecules.


What are you two purines in DNA?

The two purines in DNA are adenine (A) and guanine (G). They are nitrogenous bases that form complementary base pairs with their corresponding pyrimidines (thymine and cytosine) during DNA replication and transcription.


What are three types of pyrimidines?

Cytosine and thymine are the nitrogenous bases used in DNA. Uracil substitutes for thymine in RNA.


What is the the difference between purines and pyrimidines?

Purine- double-ringed ex: adenine and guanine Pyrimidines- single-ringed ex: cytosine and thymine


Two nitrogenous bases known as purines are?

The two nitrogenous bases known as purines are adenine and guanine. They are found in DNA and RNA molecules, where they pair with thymine and cytosine (in DNA) or uracil and cytosine (in RNA), respectively.


What are the nitrogenous bases for DNA and RNA?

Pyrimidines, which include cytosine, thymine and uracil.andPurines, which include adenine and guanine


What belong to the class of nitrogenous bases called pyrimidines?

The pyrimidines are a class of nitrogenous bases that includes cytosine, thymine, and uracil. These bases are found in nucleic acids like DNA and RNA, where they pair with complementary purines to form the building blocks of genetic information.