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 direc* ux*6 jdgtom0tly involv ,( *ofd+ lylww9gfl9red in the formation of nucleic acids sl lg +(9fd*w,l rf9woyuch 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 reactionsa5d/ s:x-go h8 2thils to form molecules of DNA (Choice B). The formatx 5:/2tdio8 -ssgah lhion 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 anabolic 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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