Biological syntheses of nucleic acids, oligosaccharides and lipids

8 Biological syntheses of nucleic acids, oligosaccharides and lipids 

These are also just as important as the biological syntheses of proteins if a holistic view of biological macromolecule and lipid assembly structures and functions is to be obtained. 

Obviously, there are times when there is a requirement to obtain and purify tofal cellular DNA or RNA (as described above). However, equally well there are times when one single DNA or mRNA molecule is required, in which case such a molecule must be identified, amplified and then purified clear of cellular debris. In this second instance, biological synthesis of such DNA or RNA molecules involves intensive use of cloning and other recombinant techniques (see Chapter 3) prior to purification protocols. 

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BIOLOGICAL SYNTHESES OF NUCLEIC ACIDS, OLIGOSACCHARIDES AND LIPIDS 137... 

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