Вставить пропущенные слова A gene is a special stretch of, a sequence of As Cs Ts and Gs that codes for something. A singleof DNA contains thousands ofor unique protein recipes. The length and sequence of a gene determine the size and shape of the it builds. The size and shape of a protein determine the function that protein will have inside the body. for example is a protein structure found in red blood cells. It’s unique shape and size allow it to capture oxygen when blood flows near the lungs and then later when blood flows near oxygen starved .

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