And a single ovum being fertilised by more than one sperm (polyspermy) is a vanishingly rare event, because normally, there are several biological blocks to polyspermy (the fast and slow blocks. Fast block is an almost immediate change in the polarity of the egg’s cell membrane, and the slow block is the raising of the hyalin layer several seconds later)...
(M.Sc. in Reproductive Physiology, in case you wondered).
(M.Sc. in Reproductive Physiology, in case you wondered).
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Yay...some useful expertise. In this situation, can you explain how two identical maternal haploids arose - I’m assuming from what originally was a single haploid. I asked another poster who seemed that he/she might have some expertise but that poster preferred to play “cute” instead of answering.
Thanks.