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Blastomeres


blastomeres
Any cell that occurs in the blastula.
Covered in Lab 14 Gametogenesis and Development
blastopore
The opening of the gastrula that develops into the mouth in protostomes and the anus in deuterostomes.
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blastomeres Any of the cells produced by cleavage of a zygote.
blastopore External opening of the archenteron in the gastrula.
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small blastomeres; in the sea urchin embryo, the four small cells that result from the fourth cleavage of the vegetal tier of cells (half the cells resulting from that tier's cleavage).
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A morula (Latin "morus", mulberry) is an embryo at an early stage of embryonic development, consisting of approximately 4-16 cells (called blastomeres). The morula is produced by embryonic cleavage, the rapid cell division of the zygote.
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Blastomeres have this property.
Pluripotent stem cells cannot grow into a whole organism, but they are able to differentiate into cells derived from any of the three germ layers.
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mass of cells, called blastomeres, formed by cleavage of the egg in the early development of many animals
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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[Gr. makros - large; Gr. meros - part] Large blastomeres found in the vegetal hemisphere of eggs formed by unequal cleavage (ex. the large blastomeres of the vegetal pole of the amphibian embryo).
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A pattern of development, such as that of a mollusk, in which the early blastomeres each give rise to a specific part of the embryo. In some animals, the fate of the blastomeres is established in the zygote.
mosaic evolution ...
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