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15 Cards in this Set
- Front
- Back
The embryonic stage where the cells form hollow ball is called _____________
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blastula
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When cells move from the surface of the hollow ball to the interior and form a pore on the surface, it is called _________________.
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blastopore
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The three primary germ layers formed by this cell movement are the _____________________, _____________________, and __________________.
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ectoderm, mesoderm, and endoderm
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Ca++ induces membrane-bound vesicles, called _____________ ____________, to fuse with the plasma membrane in the sea urchin shortly after fertilization.
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cortical granules
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In the sea urchin, one function of the fertilization membrane is to block ________________
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polyspermy
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When a zygotic cell only partially cleaves and the yolk does not divide, it is called _____________________ cleavage.
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meroblastic
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When a zygotic cell completely cleaves, it is called ________________ cleavage.
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holoblastic
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The primitive streak marks which axis of the developing chick? ______________
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anterior/posterior
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When nuclei in fungi are not separated by cross walls it is termed ____________.
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coenocytic
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In Phycomyces, what fuses prior to nuclear fusion during sexual reproduction? ___________________
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gametangia
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Two haploid cells fuse to form a ________________
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diploid Zygote
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Movement of cells to generate a new form is called _______________ _____________.
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morphogenic movements
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Two types of cell movement are called ____________________ & _______________
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ingression and invagination
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We can't observe early embryonic cleavage in the chick because _______________________________________________________________
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occurs inside body of hen
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An individual fungal filament is called a __________________
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hypha
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