Term
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Definition
| Layers of dividing cells during discoidal cleavage. |
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Term
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Definition
| During discoidal cleavage, region of cleaving cytoplasm at the animal pole of the egg. |
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Term
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Definition
| In amphibians, a cleavage-stage embryo formed of a solid cluster of blastomeres without a well-developed blastocoel. |
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Term
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Definition
| Dorsal-vegetal cells that contain dorsalizing determinants and that induce overlying dorsal mesoderm cells to form the organizer. |
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Term
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Definition
| Dorsal lip of the blastopore and its derivatives, which have the ability to coordinate development of the body plan during gastrulation. |
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Term
| Primary embryonic induction |
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Definition
| Key induction in vertebrate embryos in which the progeny of dorsal lip cells induce the dorsal axis and the neural tube. |
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