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GERMINAL DISC The entrance of the latebra, the channel leading to the center of the yolk. The germinal disc is barely noticeable as a slight depression on...
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Encyclopedia: Germinal disc
The Germinal Disc is a small, circular, white spot (approximately 2-3 mm across) on the surface of the yellow yolk of an egg that has been laid. The nucleus of the egg is in the blastodisc.
en.wikipedia.org/wiki/Germinal_disc |
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Laboratory 14: Gametogenesis & Development A Glossary of Terms from Lab 14: germinal disc; A small mass of active protoplasm found directly under the vitelline membrane.
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germinal disk n. A flattened, disklike region of cells from which the embryo begins to develop in the fertilized ovum of many vertebrate species.
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What is a(n) germinal disc – Our zoology dictionary has ecology, physiology, genetics of germinal disc, and the evolution of germinal disc.
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The embryonic disc is also called the blastoderm, the blastodisc, the disc of blastomeres or, at later stages, the blastula. The embryonic disc arose by meroblastic cleavage of the germinal disc.
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Noun, 1. germinal disc - a layer of cells on the inside of the blastula. blastoderm, blastodisc, germinal area · layer - thin structure composed of a single...
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The germinal disc is the area of the egg where sperm enter into the egg (Figure 1). This is the area of the egg which will form the embryo. The disc is 2-3 mm in diameter. When the egg is not fertilized, the germinal disc is called a blastodisc (Figure 2). There are four main characteristics associated with an...
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Microscopic analysis of ovarian follicles in the domestic hen has revealed differences in the cellular structure of granulosa cells that are dependent upon the location of granulosa cells relative to the germinal disc, which contains the female gamete.
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The structure of the ovarian follicle in the region of the germinal disc, which appears as a white plaque at the surface of the oocyte, was examined by electron microscopy and compared with the non-disc region which overlies the yellow yolk mass of the oocyte in the final growth phase.
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