Enzymes are important in cell's chemical reaction. describe what a enzyme's role in chemical reactions is and explain what an enzyme does. the following key words may you structure your response: active site, enzyme-substrate complex, and activation energy. try to

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked