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What are the three major types of RNA molecules? How is each related to the concept of information flow?
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7. DNA and Chromosome Structure
RNA
Scelta multipla
Which nucleic acid contains the nitrogenous base uracil?
A
RNA
B
Neither DNA nor RNA
C
DNA
D
Both DNA and RNA
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Recall the two main types of nucleic acids: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). Each has a specific set of nitrogenous bases.
List the nitrogenous bases found in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G).
List the nitrogenous bases found in RNA: adenine (A), uracil (U), cytosine (C), and guanine (G).
Note that uracil (U) replaces thymine (T) in RNA, meaning uracil is present only in RNA and not in DNA.
Conclude that the nucleic acid containing uracil is RNA.
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