Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
oogonium .
Etymologies
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Examples
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Formation of Ovarian Follicles • Ova develop from oogonia.
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• All oogonia are produced at a very early stage (possibly before birth) and do not multiply thereafter.
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• In late fetal period primary oogonia enlarged to form primary oocytes.
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• Then oogonia are surrounded other cells that form the stroma.
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"Oomycota" actually means "egg fungi", and refers to the large round oogonia containing the female gaments.
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"Oomycota" actually means "egg fungi", and refers to the large round oogonia containing the female gaments.
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"Oomycota" actually means "egg fungi", and refers to the large round oogonia containing the female gaments.
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It has hitherto been the only known member of the genus with spiny oogonia, and is readily distinguished from the second such species, next to be described, by its globular and few-spored oogonia, borne on slender threads.
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The oogonia show, in their form, in the pitting of their walls, and in the structure and number of their oospores, near relations with the ferax group, but the species is at once recognizable by the peculiarities above men - tioned.
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The absence of antheridia, the rather common occurrence of cylindrical oogonia, and the very conspicuous pitting of all the oogonia mark the species unmis - takably.
avivamagnolia commented on the word oogonia
~ Primitive differentiated female gametes which give rise to oocytes. Plural of oogonium.
~ Immature ova (singular: ovum). It is a female gametogonia (singular: gametogonium).
~ They are formed in large numbers by mitosis early in fetal life from primordial germ cells, which are present in the fetus between weeks 4 and 8. Oogonia are present in the fetus between weeks 5 and 30.
~ Oogonia are also the female reproductive structures in certain thallophytes, and are usually rounded cells or sacs containing one or more oospheres.
January 18, 2009