Only later does tissue differentiation of the gonads begin and male or female gonadal development proceed.
This is a synthetic hormone which, as in the female Pill, shuts off production in the brain of those molecules that stimulate the gonads to go about their reproductive business.
They assist the gonads in making sex cells and in finding and mating with members of the opposite sex.
She got to secondary school, graduated top of her class and went on to earn a degree in biology in Kansas, an MSc in Pittsburgh and, after studying in Germany, a PhD on gonads in bovines in Nairobi.
As he tells it, the knock-down-drag-out fights over these matters (his gonads were threatened by a fellow member of the social-care commission) were no less vicious than the fight to control the Labour Party in the 1970s.There are ways in which this well-written book could have been better.
There are no true gonads.
In males the gonads are called testes; the gonads in females are called ovaries.
The usually paired gonads of vertebrates produce both gametes and hormones necessary for reproduction.
The genital ducts, by which the eggs and sperm are carried away from the gonads, are, in vertebrates, linked with the excretory system.
In vertebrates, primordial germ cells arise outside the gonads, but they cannot be distinguished in early cleavage stages.
Increase in day length, hence in the amount of light, seems to initiate growth and development of the sex organs (gonads) in some birds during the spring.
