객관식
In terms of chemical stability under alkaline conditions, why is DNA generally more stable than RNA?
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7. DNA and Chromosome Structure
RNA
객관식
Which nitrogenous bases are present in RNA?
A
Adenine, cytosine, thymine, and uracil
B
Adenine, guanine, cytosine, and uracil
C
Adenine, guanine, cytosine, and thymine
D
Adenine, guanine, thymine, and uracil
검증된 단계별 안내1
Recall that nucleic acids, DNA and RNA, are composed of nitrogenous bases that pair specifically to encode genetic information.
Identify the four nitrogenous bases found in DNA: adenine (A), guanine (G), cytosine (C), and thymine (T).
Understand that RNA differs from DNA by having uracil (U) instead of thymine (T).
Therefore, the nitrogenous bases present in RNA are adenine (A), guanine (G), cytosine (C), and uracil (U).
Summarize that the key difference is thymine in DNA is replaced by uracil in RNA, which is essential for distinguishing between the two types of nucleic acids.
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