Unity and Diversity A.2 Nucleic Acids (id: 6900c3ccd)

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]
The diagram depicts nucleo89 ahdxcf si,2**k+ee ec*j5n6 byh enssel a jq q05,q*yip0+comes.

A. Joins nucleosomes together
B. Packages DNA into nucleosomes through coiling
C. DNA replication
D. Carries genetic material


参考答案:  B


本题详细解析:
Choice B is correct because X labels the core histone proteins whnrqk+ic,ja q(u :qc- nr;1 xf5ich help package the DNA into nucleosomes through coiling.Choice A is incorrect because X is not linker DNA which extends from one nucq:f;n xr ai1 cjru,5-qk+cq(n leosome to the next, connecting nucleosomes with one another. Choice C is incorrect because enzymes carry out DNA replication, not histone proteins. Choice D is incorrect because DNA carries genetic material, not the core histone proteins.

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