1 Gametogenesis The formation of sexcells or gametes.

2 In vitro modeling of human gametogenesis provides a new approach for studying biology of human germ cells and establishment of therapeutic approaches in reproductive medicine.

3 Megasporogenesis and Female Gametogenesis: Archesporium is of one cell, it directly functions as macrospore mother cell.

4 It was concluded that meiosis did not happen during the most process of gametogenesis in gynogenetic silver crucian carp eggs, even when they were stimulated by homologous sperms.

5 Taking all of the findings into consideration, we presume that P450arom play a role in porcine fetal ovary and testis development during gametogenesis.

6 Main aspects are (1) effect of ethanol on gamete: to interfere with the gametogenesis by disturb the hormone synthesis, or by act on the sex gland directly.

7 Haemocytopoiesis occurred in connective tissues adjacent to the site of gametogenesis with basement membrane as a boundary between them.