the human genome contains about 3 giga-base pairs (3 billion base pairs, often written 3 gb), and about 20,000 genes. if we make the simple assumption that the average size of the coding region of each gene (the base pairs that are translated to proteins, we'll learn more later) is 2,000 bp, what proportion (% to two decimal places) of base pairs in the genome code for protein? if applicable, please give your answer only to the second decimal place.