Multiple Choice
Which of the following is NOT found in RNA?
7. DNA and Chromosome Structure
RNA
Multiple Choice
RNA differs from DNA in that RNA uses which nitrogenous base in place of thymine?
A
Adenine
B
Uracil
C
Thymine
D
Cytosine
Verified step by step guidance1
Understand that both DNA and RNA are nucleic acids composed of nucleotides, each containing a nitrogenous base.
Recall that DNA uses the bases adenine (A), thymine (T), cytosine (C), and guanine (G).
Recognize that RNA differs from DNA in one of its nitrogenous bases; specifically, RNA contains uracil (U) instead of thymine (T).
Note that uracil pairs with adenine in RNA, similar to how thymine pairs with adenine in DNA.
Therefore, the nitrogenous base that RNA uses in place of thymine is uracil.
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