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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.

Answer & Explanation Solved by verified expert
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    See Answer
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