| TERM | GROUP | DEFINITION | |
|---|---|---|---|
| GAMETIC MEIOSIS | NP | ANIMALS, PLANTS, PROTISTS | Pronunciation: Etymology: Gametic meiosis occurs when gametes are the immediate results of meiosis. |
| GAMETOGAMY | N | ANIMALS, PLANTS, PROTISTS, FUNGI | Pronunciation: Etymology: Gametogamy is gametic fusion. |
| GAMETOPHORE | N | PLANTS | Pronunciation: Etymology: Also called the Gametangiophore; A modified branch bearing the gametangia. |
| GAMETOPHYTE | N | PLANTS, PROTISTS, FUNGI | Pronunciation: Etymology: A gametophyte is haploid, gamete-producing phase of an organism that exhibits alternation of generation. |
| GAMONT | N | PROTISTS | Pronunciation: Etymology: A gamont is a term specific to groups like Foraminiferotista in which it is the haploid or gamete-producing phase. |
| GANGLION (GANGLIA) | N | ANIMALS | Pronunciation: Etymology: A ganglion (ganglia, pl.) is a cluster of nerve cells. A brain is an enlarged ganglion. |
| GASTRODERMIS (NO PLURAL) | N | ANIMALS | Pronunciation: Etymology: Gastrodermis is the single-layered endothelial lining of many animals. |
| GASTROVASCULAR CAVITY | NP | ANIMALS | Pronunciation: Etymology: The gut or coelenteron of Cnidaria and Ctenophora. |
| GASTROZOID | N | ANIMALS | Pronunciation: Etymology: The gastrozoid is the feeding animal in a colonial organism, particularly in colonial Hydrozoans in which some are modified for other things like asexual reproduction (Gonozoids). |
| GASTRULA | N | ANIMALS | Click here |
| GEMMA (GEMMAE) | N | ||
| GEMMULE | N | ANIMALS, PLANTS | Click here |
| GENERATIVE NUCLEUS | NP | PROTISTS | Pronunciation: Etymology: Nuclei that can fuse or are destined to produce gametes. |
| GENITAL PORE | NP | ANIMALS | Pronunciation: Etymology: A genital pore |
| GENUS (GENERA) | N | SYSTEMATICS | Pronunciation: ZHE-nus Etymology: Genus is a Latin word for birth, race, or type. Genus is the noun in the binomial name of a species. The genus is always capitalized and may contain one or more species. The plural of genus is genera, never genuses. |
| GEOPHYTE | N | ECOLOGICAL | Pronunciation: Etymology: Herbaceous plant that perennates by means of underground buds. |
| GILL | N | ANIMAL, FUNGI | Pronunciation: Etymology: One of the radial spore bearing lamellae on the underside of toadstools and mushrooms. |
| GIRDLE BAND | N | PROTISTS | Pronunciation: Etymology: Girdle bands are organic bands that occur at the overlap of the of the two valves. |
| GLEBA (GLEBAE) | N | FUNGI | Pronunciation: Etymology: Spore-bearing tissue in peridium of sporophore. |
| GLOCHIDIUM (GLOCHIDIA) | N | ANIMALS | Pronunciation: Etymology: Glochidia (glochidium, sing.) is the distinctive larval stage of freshwater unionid clams. The glochidium is parasitic on the gill rakers of fish. |
| GLOMERULUS (GLOMERULI) | N | ANIMALS | Pronunciation: Etymology: A glomerulus is the ultrafiltration part of the kidney. |
| GLUCAN | N | Pronunciation: Etymology: A group of polysaccharide sugars. |
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| GLYCOGEN | N | ANIMALS, PLANTS, PROTISTS | Pronunciation: Etymology: Glycogen is a branched-chain polysaccharide that occurs in an array of protists, some plant, some animals (including vertebrates) as a storage molecule. Formerly, glycogen was called amylum or animal starch. |
| GOLGI APPARATUS (GOLGI APPARATUS OR APPARATUSES) | NP | ANIMALS, PLANTS, PROTISTS, FUNGI | Pronunciation: Etymology: Golgi apparatus (also called dictyosome) is an internal membrane system of stacked flattened sacs. They occur in nearly all eukaryotes and are involved in storing and secreting cellular products. |
| GONAD | N | ANIMALS | Pronunciation: GO-nadz Etymology: The term is derived from a Greek root meaning offshoot or offspring (gonos, γόνος). Gonads are sex glands in animals. Ovaries produce eggs and testis produce sperm. |
| GONOZOID | N | ANIMALS | Pronunciation: Etymology: The gonozoid is the asexual animal in a colonial organism, particularly in colonial Hydrozoans in which some are modified for other things like feeding (gastrozoids). |
| GRADUALNESS OF EVOLUTION | NP | EVOLUTION | Pronunciation: Etymology: Model of evolution in which species evolve into other species slowly at a more or less constant rate through time. |
| GRAM NEGATIVE | N | BACTERIA | Pronunciation: Etymology: A Gram – cell loses the blue-black crystal-violet color following destaining with alcohol during the Gram Stain procedure. Then, it takes on the color of the counterstain, typically iodine. |
| GRAM POSITIVE | N | BACTERIA | Pronunciation: Etymology: A Gram + cell retains the blue-black crystal-violet color following destaining with alcohol during the Gram Stain procedure. |
| GRAVID | ADJ | ANIMALS | Pronunciation: Etymology: Gravid (adj.) bearing mature or maturing eggs. |
| GROUP SELECTION | NP | EVOLUTION | Pronunciation & Etymology: This phrase is made of two common English words. Selection has been defined elsewhere. Group selection is selection operating between groups of individuals rather than between individuals. In theory, this type of selection produces qualities beneficial to a group in competition with other groups rather than attributes beneficial to individuals. |
| GULLET | N | ANIMALS | Pronunciation: Etymology: See flagellar pocket. |
| GYMNODINOID | ADJ | PROTISTS | Pronunciation: Etymology: A gymnodinoid cell is a naked, or unarmored dinoflagellate motile cell. |
| GYMNOSTOME | N | PROTISTS | Pronunciation: Etymology: A gymnostome is a particular type of cytostome in certain ciliates. It is defined as having a cytostome that is not surrounded by specialized cilia or other cellular structures. |
| GYNECOPHORAL GROOVE | NP | ANIMALS | Pronunciation: Etymology: A gynecophoral groove is a ventral groove in a the male Schistosome (blood fluke) in which the smaller female resides. |
| GYNOECIUM (GYNOECIA) | N | PLANTS | Pronunciation: Etymology: The female sexual organs (carpels) collectively. |
