Is there anyone here that could tell me how often does cell division take place in a zygote? I've got untill the morning to have this answer. Please e-mail me if it would'nt be too much of an inconvieniance for you.
The zygote is the fertilized oocyte, and undergoes multiple mitotic divisions in a process known as cleavage which result in blastomeres. Numbers and time frequency of division in some species is best described as "numerous" and "frequent". A frog egg for example can divide into 37,000 cells in 43 hours, and mitosis in cleavage stage Drosphilla occurs every 10 minutes for over 2 hours.
Here is a chart which shows information about that time period in the equine:
Occurs in the ampulla of the uterine tubules
Cells produced by the cleavage process
First division stage
4-6 cell stage
8-10 cell stage
The youngest developmental stage that can be harvested for transfer
6 day embryos are late morulas or early blastocysts
Can anyone tell me what it means if a day 2 zygote has divided into 10 cells? This is quick-should only be 4 cells
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