Male iguanas have the largest testes for their body size of all reptiles. Some keepers of sexually mature adult males don't doubt this for a second, given how their sweet Dr. Jekyll lizard becomes the raging Mr. Hyde once breeding season hits. The great apes, then, have one-fourth as much testicular tissue, relatively speaking, as do the green iguanas. Iguana keepers who have had occasion to clean up iguana ejaculate are not surprised by this datum. Germ cells are the cells that are stored in the testes and ovaries which, when triggered to start growing, become either the sperm or eggs.
Follicles are the enlarging ova in ovaries, prior to fertilization.
Vitellogenesis is the development of the egg yolk in the follicles. Fertilization occurs when the sperm meets the ova as they pass through the oviduct, a passage which also layers the outside of the egg with calcium to form a shell. Intromission is the act of copulation, during which the male transfers his sperm into the female. Oviposition is the laying of eggs. The female is anesthetized, restrained in an open position on her back, a lengthy abdominal incision is made, the ovaries essentially excavated, severed and removed.