BIOL 1107 Chapter Notes - Chapter 17: Phosphodiester Bond, Zipper, The Stems
Document Summary
Proteins give shape to our cells, control the chemical reactions that go on inside them and regulate how materials move into, out of, and through them. A cell builds the proteins it needs from instructions encoded in its dna. The central dogma of molecular biology states that the flow of information in cells is from dna to mrna to protein. Enzymes called rna polymerase are responsible for synthesizing mrna. This 5" to 3" matching and catalysis process continues, an rna that is complementary to the gene is synthesized, this is transcription. Only one of the two dna strands is used a template and transcribed read" by rna polymerase. The strand that is read by the enzyme is called the template strand. The other strand that is not read is called the non- template strand or the coding strand. Rna has uracil (u) rather than thymine (t) found in the coding strand.
