ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] In the Patella embryo, bilateral symmetry is indicated from the 4-cell stage by the appearance of a distinct cross-furrow between the blastomeres B and D and a minimal one between the blastomeres A and C (Fig. I)3'4. At the early 32-cell stage the macromeres of each quadrant (3 A-3D) still have the ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/287546a0