Which of the following are the pyrimidine bases of DNA?

Cytosine and Thymine

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Cytosine and Uracil

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Guanine and Adenine

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Adenine and Thymine

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Solution

The correct option is B Cytosine and Thymine
DNA and RNA are made up of nucleotides. They are of 2 types, purines and pyrimidines. Purines are 2 carbon - nitrogen-containing rings and pyrimidines are 3 carbon - nitrogen-containing cycle. Purines are adenine and guanine and pyrimidines are cytosine and thymines.
So, option A " Cytosine and Thymine" is the correct answer.

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Similar questions

Statement 1: The four nitrogen bases in a DNA molecule are guanine, thymine adenine, cytosine.

Statement 2: Where adenine and thymine are purines and guanine and cytosine are pyrimidines.

Which of the following are pyrimidine bases?

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