Development of division asynchrony and bilateral symmetry in the first quartet of micromeres in eggs of Lymnaea.
D000818:Animals; D002455:Cell Division; D005260:Female; D008094:Lithium / Q000494:pharmacology; D008195:Lymnaea; D010063:Ovum / Q000187:drug effects / Q000502:physiology*; D013997:Time Factors
D008094:Lithium