Sea Urchin Embryology Back to Contents page

 

 

 

[ANIMATIONS][PATH][EXPERIMENTS]

POLYSPERMY

If two or more sperm make it into the egg polyspermy occurs. In this case some of the genetic material condensed into chromosome is attracted to the extra sperm causing abnormal development and ultimately the death of the embryo.

Too many sperm and toxic conditions can lead to polyspermy.

Windows: Right click on animation and choose save to file

Macintosh: Hold click on animation and choose save to file

© 1997 Chris Patton, Stanford University