title: Determination of dorsoventral polarity in the Xenopus egg requires microtubules.
mesh_terms: D000818:Animals; D001562:Benzimidazoles / Q000494:pharmacology; D004625:Embryo, Nonmammalian / Q000187:drug effects / Q000502:physiology*; D005260:Female; D008870:Microtubules / Q000187:drug effects / Q000502:physiology*; D015739:Nocodazole; D010063:Ovum / Q000187:drug effects / Q000502:physiology*; D013997:Time Factors; D014981:Xenopus
chemical_list: D001562:Benzimidazoles; D015739:Nocodazole