OCT - 4 is found in preimplantation - stage embryos and later confined to primordial germ cells, and then, the expression during male and
female gametogenesis exhibits sex - specific down - regulation similar to SSEA1 [63].
Not exact matches
The animals were held for about four months while the
females made ripe eggs — a process called
gametogenesis.
Despite a large number of sex - specific
gametogenesis proteins uncovered in the model organisms Drosophila, C. elegans and mice, no conserved male - or
female - specific gametogenic factors common to all lineages of animals have been clearly demonstrated [30]--[33].
The fundamental component of animal sexual reproduction is
gametogenesis, the differentiation of sexually dimorphic male sperm and
female eggs.
Unlike meiosis, which is required in both males and
females, most other components of
gametogenesis are sex - specific or sex - biased, such as sperm tail formation.