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?
A. uracil
B. adenine
C. thymine
D. cytosine
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Uracil is the nitrogenous base present only in RNA, but not in DNA. Thymine is in DNA. DNA have thymine, guanine, adenine and cytosine. Thymine is replaced by uracil in RNA.
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