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List the four bases that can be found in the nucleotides of DNA. In what way...

List the four bases that can be found in the nucleotides of DNA. In what way are they divided into two groups?

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Answer #1

Four bases in DNA nucleotides-

A- Adenine

G- Guanine

T - Thymine

C - Cytosine

They are grouped in two - purines and pyrimidines.

Purines include two base (A and G)

Pyrimidines include (T , C and U in RNA ).

The basis of this classification is how many membered ring present , how many Nitrogen atoms present .

Purines have 2 ring structure , one ring is 6 membered and other is 5 membered. And they have 4 nitrogen atoms.

Pyrimidines have single ring structure. They are 6 membered . And have 2 nitrogen atoms.

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