You have about 1000 different kinds of smell receptors. Each of these receptors is a distinct protein coded for by a specific gene. The Human Genome Project revealed that humans have a total of about...

You have about 1000 different kinds of smell receptors. Each of these receptors is a distinct protein coded for by a specific gene. The Human Genome Project revealed that humans have a total of about 22,000 genes. Show that about 4.5, of your genes are dedicated to helping you smell.