A TWO child average will not solve overpopulation. With a two child average per woman (or per man), total population would go up by about two billion more â to nine billion! â before it even levels off! And it would not decline below 8 billion for another 200 years!
Nucleic acids. Nucleotides can link together by the formation of phosphate ester bonds. The hydroxyl group of a phosphate on one nucleotide undergoes a condensation reaction with the hydroxyl group on the carbohydrate ring of another nucleotide. The process may continue, building up nucleic acid molecules. These are polymers called polynucleotides. Formation of a polynucleotide. Nucleic acids are the 'building blocks' of DNA and RNA. The structure of DNA. DNA is formed from two polynucleotide chains.
Reyes free to copy for educational purposes Chem 30B Nucleic Acids (Structure) Nucleic acids determine and control the functioning of cells. DNA â deoxyribonucleic acid and RNA â ribonucleic acid. Both nucleic acids are polymers of nucleotides. Nucleotides contain a phosphate group, a sugar and a nitrogen base. You already know the structure of the phosphate group. Notice that in this nucleotide the sugar (Î²-D-ribose, found in RNA) is an aldopentose.