Question

During the cortical reaction, __________. during the cortical reaction, __________. enzymes are released from the head of the sperm enzymes are released from vesicles in the oocyte the zona pellucida disappears multiple sperm fertilize the egg

Answer 1

During the cortical reaction, enzymes are released from vesicles in the oocyte. The cortical reaction is a reaction for preventing polyspermy, the fusion of multiple sperm with one egg. It is a process which occurs during fertilization by the release of cortical granules from the egg. Cortical granules contain components which establish a permanent barrier to sperm entry.