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Blastopore


blastopore
a pore of the blastula stage that opens into the archenteron
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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Blastopore
[Gr. blastos - germ, bud, shoot; L. porus - a pore or passage]. The opening between the archenteron and outside of the embryo, formed by invagination during gastrulation. In some organisms, it becomes the anus.
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Blastopore forms future mouth and anus
Blastopore forms future anus only. Mouth forms later.
Few HOX genes for the posterior ...
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blastopore
(blas-toh-por) [Gk. blastos, sprout + poros, a way, means, path]
The opening of the archenteron in the gastrula that develops into the mouth in protostomes and the anus in deuterostomes.
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blastopore - site of gastrulation initiation and later the opening of the archenteron at the vegetal region of certain embryos (e.g., echinoderm and amphibian); in deuterostome embryos it is the future anus of the organism.
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blastopore
The opening of the gastrula that develops into the mouth in protostomes and the anus in deuterostomes.
Lab 13 Animal Diversity III
Lab 14 Gametogenesis and Development ...
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blastopore External opening of the archenteron in the gastrula.
blastula An early stage in the development of an embryo; it consists of a sphere of cells enclosing a fluid-filled cavity (blastocoel).
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Protostomes (first mouth) are coelomates whose embryonic development shows a blastopore associated with a mouth.
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a homeodomain transcription factor expressed in the dorsal lip of the blastopore; may be a key factor is specifying these cells as the organizer of the embryo.
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Acoelomorpha (basal)
Orthonectida (parasitic to flatworms, echinoderms, etc.)
Myxozoa (slime animals)
Superphylum Deuterostomia (blastopore becomes anus) ...
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