객관식
In DNA structure, the sugar found in DNA is which of the following?
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7. DNA and Chromosome Structure
DNA Structure
Multiple Choice
Which set correctly lists the four nitrogenous bases found in DNA?
A
Thymine, uracil, cytosine, guanine
B
Adenine, uracil, cytosine, guanine
C
Adenine, thymine, cytosine, uracil
D
Adenine, thymine, cytosine, guanine
검증된 단계별 안내1
Recall that DNA is composed of four nitrogenous bases which are divided into two categories: purines and pyrimidines.
Identify the purines in DNA: adenine (A) and guanine (G).
Identify the pyrimidines in DNA: cytosine (C) and thymine (T).
Note that uracil (U) is found in RNA, not DNA, so any option containing uracil is incorrect for DNA bases.
Therefore, the correct set of nitrogenous bases in DNA is adenine, thymine, cytosine, and guanine.
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