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]
Which of the following processes is most directly involved in the s8l z62, xswdsformation zag; md1z3exv j .9n *0affy-qj;8o jeof nucleic ae;f da-f3 * 1j9qnm0zz ;vyjjoae.x8 gcids such as DNA?
A. Hydrolysis
B. Condensation
C. Catabolism
D. Translation
参考答案: B
本题详细解析:
Nucleotides are linked together by condensation reactionssgieqz; v,:lf,d9+zq2 yp w wrr o/+6l to form molecules of DNA (Choice B). The formation of DNA requires the removal of water for the joining of smaller molecules to form a larger molecule.The joining of nucleotides together can also be classified as an zvl2 +z ;drs/ :g,9 fqo yw+lwpre,iq6anabolic reaction but not as a catabolic reaction (Choice C). Catabolism is the breaking down of a large molecule into a smaller molecule. An example of catabolism is hydrolysis which is a reaction that breaks down a large molecule into a smaller molecule by adding water (Choice A).Translation is a process which follows the transcription of DNA (Choice D). It is where mRNA is used as a template by ribosomes to synthesize polypeptides.
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