gonad


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gonad

an animal organ in which gametes are produced, such as a testis or an ovary
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

gonad

[′gō‚nad]
(anatomy)
A primary sex gland; an ovary or a testis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Examination: Examination of the external genitalia shall include gonads, if palpable and symmetrical or not.
In the same way functional hermaphroditism was observed in Strongylocentrotus purpuratus with gonads predominantly female and areas of each gonad containing some tubules with stages of spermatogenesis and mature sperm as well as mature ova (Gonor, 1973).
This study determined spawn timing of Parastichopus californicus in SEAK over three annual cycles based on GI, and then compared GI with gonad lipid content and histological observations of egg development to determine whether GI presents an accurate indication of gonad maturation stage.
These results indicated that eyestalk ablation promoted food consumption, feeding intensity, gonad development, and energy conversion efficiency of P.
Histological analysis was performed on 31 gonads that represent the different phases of development: 3 gonads for the immature phase, 12 gonads for the early developing subphase, 6 gonads for the developing phase, 4 gonads for the spawning-capable phase, 2 gonads for the regressing phase, and 1 gonad for the regenerating phase.
It is very likely that the determination and consequent differentiation of sturgeon gonads take place during the first year of life, studies showing gonad surface differentiation at 4 months for A.
(2013) [15] reported that the liver appeared to be the main heavy metal storage tissue, while the gonad had the lowest levels of analysed metals.
Informative predictive parameters for the development of gonadal type 2 germ cell tumours are the anatomical position of the gonad, gonadal differentiation, and the presence of a specific part of the Y chromosome (14).
Thus, the objective of this study was to evaluate the quality and shelf life of the gonad of whole lion's paw scallops during refrigerated transport and storage, as a possible alternative for exporting the product to international markets, when this organ attached to the muscle and/or other organ, depending on the type of product being handled.