There are only four DNA bases, but there are 20 amino acids that can be used for proteins. So, groups of three nucleotides form a word (codon) that specifies which of the 20 amino acids goes into the protein (a 3-base codon yields 64 possible patterns (4*4*4), which is more than enough to specify 20 amino acids.pecifically, the order of nucleotides within a gene specifies the order and types of amino acids that must be put together to make a protein. A protein is made of a long chain of chemicals called amino acids Proteins have many functions: 1  Enzymes that carry out chemical reactions (such as digestive enzymes).
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Full or Double Sheet Sizes. While the sheets designed for full or double beds vary in size from brand to brand or even style to style, the mattresses they are designed to fit are all 54 inches wide, 75 inches long. A fitted sheet for a full or double bed closely matches the actual mattress size for a snug fit, while flat sheet sizes are larger. There is no standard measurement for a full or double flat sheet; in one brand, the sheet may be 81 inches wide, while another offers an 85-inch-wide flat sheet.