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Adenine and guanine.

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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 two classes belong to the class of nitrogenous bases called purines?

Adenine and Guanine are the two classes of nitrogenous bases that belong to purines.


Nitrogenous bases with carbon and nitrogen atoms in two rings?

purines


Which two groups are nitrogenous bases categorized?

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


Which nitrogenous base is composed of two rings?

the nitrogenous base which has double ring structure is purine.it consist two bases adenine and guanine;


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

Purines and Pyrimidines


How many nitrogenous bases are there What are they called?

Four, out of whish 2 purines and two pyremidines


Nitrogenous bases called purines?

Guanine and Adenosine


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.


Belong to the class of nitrogenous bases called purines?

Adenine and Guanine belong to the class of nitrogenous bases called purines. They are characterized by a double-ring structure that includes both a six-membered ring and a five-membered ring. These purine bases play a crucial role in the structure of DNA and RNA molecules.


Nitrogen bases made up of two rings are called?

Purines. They are one of the two types of nitrogenous bases found in DNA and RNA, and they consist of a double-ring structure. Adenine and guanine are examples of purines.


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