First, scientists, divers and cinematographers are just beginning to get enough underwater footage of actual mating behaviors in a variety of shark species to get a full understanding of their mating behaviors. So, much of what is known today in general terms regarding shark mating is by combining observations on different species and by examing things like bite marks and reproductive organs in dead animals. Species-level information is apt to change a little as people explore the oceans more, but the general pattern is true.

So, yes, white sharks are presumed to mate the same way as other sharks -- the male biting the back of the female before and during copulation. And the reproductive organs on males and females suggest that they work the same way in white sharks as in most other live-bearing sharks.

Continuous observations of the large white sharks that surround the Farallon Islands indicate that females are much larger than males at their maximum size and that females and males are often heavily scarred. However, based on satellite tracking studies, mating is thought to occur in other parts of the ocean far away from the Farallons, and to my knowledge actual mating has not been observed, just scars.

Here's a bite mark from a blue shark we tagged recently off the coast of San Diego.