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Ainat [17]
3 years ago
14

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

Biology
2 answers:
Airida [17]3 years ago
5 0
Uracil is not found in DNA, only RNA, and replaces thymine in RNA 
sveta [45]3 years ago
5 0

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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