객관식
DNA and RNA both contain a ___-carbon sugar.
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7. DNA and Chromosome Structure
DNA Structure
객관식
Which set lists the four nitrogenous bases found in DNA?
A
Adenine, thymine, cytosine, guanine
B
Thymine, uracil, cytosine, guanine
C
Adenine, thymine, cytosine, uracil
D
Adenine, uracil, cytosine, guanine
검증된 단계별 안내1
Recall that DNA is composed of four nitrogenous bases which are categorized into two groups: purines and pyrimidines.
Identify the purines in DNA: adenine (A) and guanine (G).
Identify the pyrimidines in DNA: cytosine (C) and thymine (T).
Remember that uracil (U) is found in RNA, not DNA, so any option containing uracil is incorrect for DNA bases.
Combine the correct bases to list the four nitrogenous bases found in DNA: adenine, thymine, cytosine, and guanine.
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