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DNA and RNA share a number of similarities, but they also differ in certain aspects of their structure.

Which nitrogenous base is found in RNA but is not found in DNA?

uracil

adenine

thymine

cytosine

Verified Answer :

notarobot

Uracil is not found in DNA, only RNA, and replaces thymine in RNA

smilodon

The correct answer is uracil.

Uracil is a nitrogen base that is found in the RNA and not in the DNA, which has thymine. The three other nitrogen bases are the same ( Adenine, Guanine and Cytosine).

Besides the difference in the nitrogen bases, the two molecules also differ in the sugar that builds the structure ( DNA has desoxyribose and RNA has ribose) and the DNA is a two stranded helix, whereas the RNA is a single stranded molecule.


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