Svensk definition
Embryot i sitt tidigaste stadium, blastogenesen, som varar från det befruktade äggets första mitotiska delning i två blastomerer till bildandet av morulan, en tät massa av blastomerer.
Cleavage Stage, Ovum
Äggets delningsstadium
Engelsk definition
The earliest developmental stage of a fertilized ovum (ZYGOTE) during which there are several mitotic divisions within the ZONA PELLUCIDA. Each cleavage or segmentation yields two BLASTOMERES of about half size of the parent cell. This cleavage stage generally covers the period up to 16-cell MORULA.
Svenska synonymer
Klyvningsfas, ovum — Segmentationsfas, ägg
Engelska synonymer
Cleavage Stages, Ovum — Ovum Cleavage Stage — Ovum Cleavage Stages — Segmentation Stage, Ovum — Ovum Segmentation Stage — Ovum Segmentation Stages — Segmentation Stages, Ovum