Question

are the nitrogenous bases when grouped together are called pyrimidines



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Answer 1

Q) Are the nitrogenous bases called pyrimidines, when grouped together ?

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Nope.

There are total 5 nitrogenous bases. They are divided into two groups i.e. Purins and Pyrimidines.

Purins include those nitrogenous bases which have double ring in their structure.

Purins include Adenine (A) and Guanine (G).

Pyrimidines include those nitrogenous bases which have a single ring in their structure.

Pyrimidines include Cytosine (C), Uracil (U, only found in RNA) and Thymine (T, only found in DNA).

Answer 2

Answer: no

Explanation: Adenine and cytosine are purines.

Guanine,Thymine and uracil are pyrimidines.

adenine pairs with thymine in DNA and with uracil in RNA.

Guanine pairs with cytosine.