The list below describes (in no particular order) some
early events of the pre-embryonic period.
1 –...
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Biology
The list below describes (in no particular order) someearly events of the pre-embryonic period.
1 – Cortical reaction
2 – Blastocoel forms
3 – Yolk sac and amnion start to form
4 – Dichorionic-Diamnionic twins
5 – Four celled pre-embryo
6 – Human chorionic gonadotropin present in urine
The 6 steps above are not in the correctorder.
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3.9 Ratings (402 Votes)
1 The cortical reaction is a process initiated during fertilization by the release of cortical granules from the egg which prevents polyspermy the fusion of multiple sperm with one egg 2 Four celled preembryo The mitosis
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