Nucleic acid sequence Nucleic acid sequence A nucleic acid sequence is a succession of letters that indicate the order of nucleotides forming alleles within a DNA (using GACT) or RNA (GACU) molecule. By convention, sequences are usually presented from the 5' end to the 3' end. For DNA, the sense strand is used. Because nucleic acids are normally linear (unbranched) polymers, specifying the sequence is equivalent to defining the covalent structure of the entire molecule. For this reason, the nucleic acid sequence is also termed the primary structure. The sequence has capacity to represent information. Biological deoxyribonucleic acid represents the information which directs
Amino acid-based formula Amino acid-based formula Amino acid-based formula, also known as an elemental formula, is a type of hypoallergenic infant formula made from individual amino acids. Amino acids are the building blocks of protein and together they form the protein requirements in formula needed for growth and development. The amino acids are in the simplest form, making it easy for the body to process and digest. "Neocate", "EleCare" and "Nutramigen Puramino" are the more commonly encountered brands of amino acid-based formula in the US. Because infants and children have different nutritional needs, amino acid-based formulas are typically formulated either for infants 0–1