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Flashcards - TExMaT Master Science Teacher 8-12: Reproduction & Development

Flashcards - TExMaT Master Science Teacher 8-12: Reproduction & Development
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allantois
Allantois is a sac-like structure that forms part of a developing amniote's conceptus
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zygote
A zygote , is a eukaryotic cell formed by a fertilization event between two gametes
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yolk sac
The yolk sac is a membranous sac attached to an embryo, formed by cells of the hypoblast adjacent to the embryonic disk
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mesoderm
In all bilaterian animals, the mesoderm is one of the three primary germ layers in the very early embryo
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embryo
An embryo is an early stage of development of a multicellular diploid eukaryotic organism
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chorion
In humans and most mammals, the chorion is one of the membranes that exist during pregnancy between the developing fetus and mother
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chorion
In humans and most mammals, the chorion is one of the membranes that exist during pregnancy between the developing fetus and mother
embryo
An embryo is an early stage of development of a multicellular diploid eukaryotic organism
mesoderm
In all bilaterian animals, the mesoderm is one of the three primary germ layers in the very early embryo
yolk sac
The yolk sac is a membranous sac attached to an embryo, formed by cells of the hypoblast adjacent to the embryonic disk
zygote
A zygote , is a eukaryotic cell formed by a fertilization event between two gametes
allantois
Allantois is a sac-like structure that forms part of a developing amniote's conceptus
amnion
The amnion is a membrane that closely covers the embryo when first formed
ectoderm
Ectoderm is one of the three primary germ layers in the very early embryo
endoderm
Endoderm is one of the three primary germ layers in the very early human embryo
blastocyst
The blastocyst is a structure formed in the early development of mammals
gastrula
Gastrulation is a phase early in the embryonic development of most animals, during which the single-layered blastula is reorganized into a trilaminar structure known as the gastrula
primary germ layers
A germ layer is a primary layer of cells that form during embryogenesis
Chordin
Chordin is a bone morphogenetic protein antagonist composed of four small cysteine-rich domains, whose function is not known

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