Answer ：Nucleotides are made from RNA, or RNA.

Answer ：Ribonucleic acid is a large molecular organism that is arranged in different ways by the nucleotides of many small molecules.

Answer ：RNA is extracted from yeast cells and yeast is produced by fermentation.

Answer ：Nucleotide is an inherent substance in the human body, and healthy adults can complete the synthesis and supply, while infants and young children are not fully developed and unable to feed themselves. Breast milk contains the necessary nucleotides, but the milk is not satisfied, so it is necessary to add a nucleotide to meet the needs of infant and infant body development.

Answer ：Enzymatic production of nucleotides, RNA is raw material, through the enzyme reaction, the macromolecules of RNA is decomposed into small molecules of nucleotides, single high purity is obtained by separation and purification of nucleotides, RNA and nucleotide is the body have some material, belongs to the category of nutritional fortifiers to be not in your body, such as preservative, essence is outside the object.