WebApr 20, 2001 · Inhibition of the fast and slow blocks to polyspermy Objective : to test the effects of inhibiting the fast and slow blocks to polyspermy on sea urchin development. Background Sea urchin eggs release … WebIn the slow block to polyspermy, eggs release material into the extracellular space, and within minutes of its release, this material transforms the egg from a gamete ready for sperm entry, to a structure unable to permit fertilization. The slow block is used by eggs from nearly all sexually reproducing animals. By contrast, the fast block to ...
How Is Polyspermy Blocked? Get the Answer at BYJU
Webimpenetrable barrier that coats a nascent zygote; part of the slow block to polyspermy polyspermy penetration of an oocyte by more than one sperm zona pellucida thick, gel-like glycoprotein membrane that coats the oocyte and must be penetrated by sperm before fertilization can occur zygote WebIn the category of slow blocks to polyspermy are the fertilization membrane and enzymes that digest the adhesion proteins by which sperm stick to eggs. The fast block to polyspermy is a propagated wave of electrical depolarization that spreads rapidly (in second) across the plasma membrane of the oocyte. daylight\u0027s c3
Block to Polyspermy Flashcards Quizlet
WebWhat is the slow block of polyspermy established by? vesicles in the outer cortex of the cytoplasm Which of the following pairs of events most directly results in the short-lasting "fast block" and the longer-lasting "slow block" to polyspermy? A. acrosomal reaction and vitellogenesis B. cortical reaction and the formation of the yolk protein WebThe egg's blocks to polyspermy (fertilization of an egg by more than one sperm) were originally identified in marine and aquatic species with external fertilization, but … WebWhich of the following is not an important component of the slow block to polyspermy Group of answer choices A. depolarization of the cell B. a physical space between the cell membrane and the fertilization envelope C. hardening of the vitelline layer and jelly coat to form the fertilization envelope Question gavin richardson facebook