Gonads


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gonads

The sex glands. The gonads are the ovaries in the female, that produce eggs (ova) and the testicles in the male, that produce sperms (spermatozoa). Both also produce sex hormones.

Gonads

Glands that make sex hormones and reproductive cells-testes in the male, ovaries in the female.
References in periodicals archive ?
When the response is not normal it means that there is dysgenisis of gonads, vanishing testis syndrome, leydigcell hypoplasia or abnormality in the testosterone synthesis especially 17[beta] hydroxysteroid dehydrogenase deficiency.
Particularly, the condition of having or produce of both male and female gametes by the same gonad (ovotestis or syngonic) occurs as a process (sexual differentiation), as well as a mode of sexuality (hermaphroditism) over lifespan of the invertebrates (Ghiselin, 1969; Warner, 1975).
californicus often eviscerate internal organs, sometimes including gonads, and then regrow organs from existing energy stores before spawning.
The increase in the gonad energy value (Eg) was significantly higher in the treatment than control group (P<0.01).
Regressing and regenerating gonads were detected in 3 females, which were caught at depths of 86-138 m at distances of 26-58 nmi from the coast.
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.
In the gonad samples, the comparison in the concentrations of HMs among three species of fish where Pb levels ranged from 2.33 ppm to 18.67 ppm; Cd found up to 0.71 ppm and Ni were below the detection level (Table 2).
In our study, monthly variation showed a gradual increase in the autumn, which could be related to the reproductive cycle and maturation of gonads. In other hand, the peak observed in January (period of sexual rest), and the increase in spring did not match with the gametogenic cycle.
It is postulated to serve a normal function in the testis but could exert oncogenic effects in dysgenetic gonads of individuals with DSD (17).
In the north, however, another sex race hits the transition to four-legged life with gonads of males or females already in place in about equal proportions.