(a.) Characterizing the ovum when it has two primary germinal layers.
Example Sentences:
(1) We report the nucleotide sequence of eveC, a cnidarian eve-class homeobox; this is the first homeobox to be identified in any diploblastic organism, and is only the second eve-class in an invertebrate.
(2) Triploblasts and diploblasts formed two clearly separated monophyletic units; this divergence, which apparently preceded the diversification of diploblastic animals (i.e.
(3) These results do not exclude the possibility that triploblasts and diploblasts arose independently from different protists.
(4) In order to study the origin of metazoans, we have compared sequences from the 5' end of the large subunit ribosomal RNA of a number of protists, fungi, plants and metazoans, including all diploblastic phyla (sequences of 10 new species have been determined, including that of the placozoan, Trichoplax adhaerens).
(5) the successive sponge, ctenophore, cnidarian radiations), showed a much more ancient origin of triploblasts with respect to diploblasts than classically assumed.
(6) We report here the first homeoboxes from cnidarians, a phylum of diploblastic organisms thought to occupy a near-basal position in metazoan phylogeny.
(7) From this analysis, several inferences on the eukaryogenesis can be made among which the ancient origin of the cytoskeleton, the late occurrence of the chloroplastic endosymbiosis and the simultaneous emergence of the triploblastic and diploblastic metazoan patterns.
(8) Sequences from the 5' end terminal part of 28S ribosomal RNA were obtained and compared for 22 animals belonging to all diploblastic phyla and for a large number of representatives of triploblastic Metazoa and protists.
(9) Short internodes between these radiations suggested an early rapid diversification of diploblasts.
Triploblastic
Definition:
(a.) Of, pertaining to, or designating, that condition of the ovum in which there are three primary germinal layers, or in which the blastoderm splits into three layers.
Example Sentences:
(1) Hence, formation of the triploblastic structure in aggregates appears to be dependent upon developmentally regulated, distinct cell adhesion events.
(2) At gastrulation, a single layer of cells is converted into an outer ectodermal covering, an inner ectodermal tube, and in triploblastic phyla, a middle mesodermal layer.
(3) Triploblasts and diploblasts formed two clearly separated monophyletic units; this divergence, which apparently preceded the diversification of diploblastic animals (i.e.
(4) Homeoboxes have previously been documented from various phyla of triploblastic, coelomate and pseudocoelomate, animals.
(5) These results do not exclude the possibility that triploblasts and diploblasts arose independently from different protists.
(6) A long internal branch preceding the diversification of all triploblasts analyzed could be explained either by a long period with a single ancestor or by the extinction of the earliest triploblastic radiations.
(7) the successive sponge, ctenophore, cnidarian radiations), showed a much more ancient origin of triploblasts with respect to diploblasts than classically assumed.
(8) From this analysis, several inferences on the eukaryogenesis can be made among which the ancient origin of the cytoskeleton, the late occurrence of the chloroplastic endosymbiosis and the simultaneous emergence of the triploblastic and diploblastic metazoan patterns.
(9) Freshwater planarians (Platyhelminthes, Turbellaria, and Tricladida) are acoelomate, triploblastic, unsegmented, and bilaterally symmetrical organisms that are mainly known for their ample power to regenerate a complete organism from a small piece of their body.
(10) Sequences from the 5' end terminal part of 28S ribosomal RNA were obtained and compared for 22 animals belonging to all diploblastic phyla and for a large number of representatives of triploblastic Metazoa and protists.