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In which pair are both nitrogen bases purines?
Select one:
a. cytosine and guanine
b. guanine and uracil
c. adenine and guanine
d. thymine and uracil


Sagot :

Final answer:

Adenine and guanine are both purines in DNA and RNA.


Explanation:

Both adenine and guanine are purines, which are nitrogenous bases found in DNA and RNA.

In the given options, the pair that consists of both purines is adenine and guanine.


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