Humans have far fewer genes than expected at 35 000 to 42 000, compared to the nematode worm with 18 000 and the fruit fly with 13 000.

The difference between humans and fruit flies or worms is that human genes work differently, are capable of multitasking, and have more control genes.

Most mutations occur in males.

If you had to line up the entire DNA in the human body, it would reach to the sun and back more than 600 times.

And the information would fill 200 500-page telephone directories.