Talk:Blastulation: Difference between revisions
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[[User:Mannintg|Mannintg]] ([[User talk:Mannintg|talk]]) 01:27, 14 March 2013 (UTC) |
[[User:Mannintg|Mannintg]] ([[User talk:Mannintg|talk]]) 01:27, 14 March 2013 (UTC) |
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[[User:Dickhitch|Dickhitch]] ([[User talk:Dickhitch|talk]]) 16:41, 14 March 2013 (UTC) |
[[User:Dickhitch|Dickhitch]] ([[User talk:Dickhitch|talk]]) 16:41, 14 March 2013 (UTC) |
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tadahhla 16:43, 14 March 2013 (UTC) |
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is the blastula the same as the blastocyst? if so, should be merged. |
is the blastula the same as the blastocyst? if so, should be merged. |
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Revision as of 16:43, 14 March 2013
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Mannintg (talk) 01:27, 14 March 2013 (UTC) Dickhitch (talk) 16:41, 14 March 2013 (UTC) tadahhla 16:43, 14 March 2013 (UTC)
is the blastula the same as the blastocyst? if so, should be merged.
The blastocyst is not mammalian blastula. Blastocyst is specific stage appeared in placentals mammalia in order to form the sphere imitating the yolk. Placentals lost the yolk in their eggs but the scheme of morphogenesis is the same as in reptiles and prototeria (and homologious to well-known bird's development). The blastula of all Amniota (reptiles, birds and mammals) is discoblastula and is formed on (or under) a sphere (yolk or trophoblast). 95.25.161.153 (talk) 16:03, 18 June 2011 (UTC)
found somewhere that the blastula follows the morula stage (16cell) during which for about 3 days mitotic divisions continue, but differentiation between the embryoblast and trophoblast has not yet occurred. This should be confirmed though. However, several embryology texts note that once the cavity has formed it is considered a blastocyst. Might be an unnecessary delineation.
Whitefish
Why study whitefish in particular, as opposed to, say, haddock? Wanderer57 (talk) 12:44, 29 August 2008 (UTC)
- I believe it's due to cell size, easier to view chromosomes 205.250.72.250 (talk) 09:19, 5 February 2010 (UTC)
If you're an expert on this subject, please elaborate and make this article substantive.
I can't believe that whoever worked on this article previously left it hanging with so many question marks. — Preceding unsigned comment added by 70.184.248.6 (talk) 13:23, 15 October 2011 (UTC)