polyspermy การใช้

• Research also suggests that p32 does not contribute to polyspermy prevention.
• It is also responsible for the primary block to polyspermy in mammals.
• Polyspermy is the condition when multiple sperm fuse with a single egg.
• The fast block is an electrical block to polyspermy.
• Both the ZP2 proteinase and trypsin-like proteinase contribute to polyspermy prevention.
• Therefore, N-Acetylglucosaminidase contributes to polyspermy prevention.
• Hyalin has a secondary effect of aiding with polyspermy when in the hyaline layer.
• This phenomenon is the slow block to polyspermy.
• Should the fertilization envelope not form or dissociate, the hyaline layer alone blocks against polyspermy.
• The protein has strong adhesive properties which can help with cell differentiation and as a polyspermy prevention component.
• This sees the release of cortical granules that release enzymes which digest sperm receptor proteins, thus preventing polyspermy.
• Researchers have suggested that calreticulin serves as a chaperone protein for other cortical granule components contributing to polyspermy prevention.
• In sea urchins, the block to polyspermy comes from two mechanisms : the fast block and the slow block.
• The "'cortical reaction "'is a process initiated during slow block of polyspermy in many animals.
• Additionally contributing to polyspermy prevention, calreticulin may also inhibit certain glycoproteins, which promote interaction between the oocyte and sperm.
• In species without an electrical block, polyspermy is usually prevented by secretion of materials that establish a mechanical barrier to polyspermy.
• In species without an electrical block, polyspermy is usually prevented by secretion of materials that establish a mechanical barrier to polyspermy.
• Triploidy, usually due to polyspermy, occurs in about 2 3 % of all human pregnancies and ~ 15 % of miscarriages.
• The prevention of polyspermy in sea urchins depends on a change in the electrical membrane is repelled by the positive charge at the egg surface.
• The released hyalin modifies the extracellular matrix of the fertilized egg to block other sperm from binding to the egg, and is known as the slow-block to polyspermy.