Answers

2014-09-05T16:27:39+08:00
DNA is the code from which living things are made, since the DNA codes for proteins and the proteins are the foundation of cellular chemistry. Carbohydrates, lipids, and nucleic acids are made by enzyme-driven systems.
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2014-09-06T17:08:27+08:00
It is must either carbohydrates or nucleic acid
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