Scelta multipla
Which nucleotide base is found in RNA but not in DNA?
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7. DNA and Chromosome Structure
RNA
Scelta multipla
In RNA, which nucleotide base is found in place of thymine and is characteristic of RNA compared with DNA?
A
Cytosine (C)
B
Thymine (T)
C
Uracil (U)
D
Adenine (A)
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Understand that DNA and RNA are both nucleic acids composed of nucleotide bases, but they differ in one of their bases.
Recall that DNA contains the bases adenine (A), thymine (T), cytosine (C), and guanine (G).
Recognize that RNA contains adenine (A), cytosine (C), guanine (G), but instead of thymine (T), it has a different base.
Identify that the base replacing thymine in RNA is uracil (U), which pairs with adenine during RNA base pairing.
Conclude that uracil (U) is the nucleotide base characteristic of RNA that replaces thymine found in DNA.
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