Multiple Choice
Which property is primarily responsible for the functional versatility observed in RNA molecules?
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7. DNA and Chromosome Structure
RNA
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Which nitrogenous base is found in RNA but not in DNA?
A
Uracil
B
Cytosine
C
Thymine
D
Adenine
Verified step by step guidance1
Recall the four nitrogenous bases found in DNA: Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).
Recall the four nitrogenous bases found in RNA: Adenine (A), Uracil (U), Cytosine (C), and Guanine (G).
Compare the bases in DNA and RNA to identify which base is unique to RNA and not present in DNA.
Note that Thymine (T) is present in DNA but replaced by Uracil (U) in RNA.
Conclude that Uracil is the nitrogenous base found in RNA but not in DNA.
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