本题目来源于试卷: Unity and Diversity A.2 Nucleic Acids，类别为 IB生物学
[单选题]
What feature of the DNA mo6)eaffu3,y )bn nuoc3gz 6 u:jlecule was utiliseo r+y54kzl xtq4)/imx d by Hershey and Chase in order to identifmoxt5 lx)4yqir +/z4 ky that viral DNA is able to enter host cells, but most of their protein is not?
.
A. DNA nucleotides contain phosphorus.
B. DNA can supercoil around nucleosomes.
C. DNA contains a short repetitive nucleotide sequence.
D. DNA strands are held together by hydrogen bonds.
参考答案: A
本题详细解析:
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