Fertilization is the union of haploid sperm and egg. What
are the two
ensures that eggs are fertilized only by sperm of the same
might happen if an egg were fertilized by more than one
is the fast block to polyspermy?
causes the cortical reaction?
could you confirm that all of the necessary
is the slow block to polyspermy?
fertilization membrane is anchored to the plasma membrane by
"posts". Proteases from the
cortical granules cleave the posts allowing the
fertilization membrane to
elevate. What would be possible consequences of
inhibiting this protease
other changes are triggered in the
eggby the increase in
© 2001 Cebra-Thomas
concentrations in the
Last Modified: 8 January,