Zebrafish - Cleavage Period: Difference between revisions
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'''Cleavage Period''' | '''Cleavage Period''' | ||
[[File:Picture 2.png|right|The Cleavage Period. Photo supplied by Judy Cebra-Thomas | |||
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The duration of this period is from 0.75 to 2.25 hours | The duration of this period is from 0.75 to 2.25 hours | ||
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* Thus the cells remain interconnected by cytoplasmic ‘bridges’. | * Thus the cells remain interconnected by cytoplasmic ‘bridges’. | ||
[http://php.med.unsw.edu.au/embryology/index.php?title=2009_Group_Project_3 Zebrafish homepage] | [http://php.med.unsw.edu.au/embryology/index.php?title=2009_Group_Project_3 Zebrafish homepage] | ||
Revision as of 13:59, 20 September 2009
Cleavage Period
The duration of this period is from 0.75 to 2.25 hours
- The transition during this period is from two cells to 128 cells
- These transitions occur Rapidly and Synchronically
- After the first cleavage the blastomeres division is approximately every 15 minutes; There are six cleavages during this period
- A vertical furrow forms but when it reaches the end of the blastodisc, it become horizontal, and partially cleaves the zygote cell from the yoke cell, This is known as meroblastic divisions
- Thus the cells remain interconnected by cytoplasmic ‘bridges’.
