So in one instance, you can have somebody who has an XY chromosomal basis, and that SRY gene on the Y chromosome tells the proto-gonads, which we all have in the fetal life, to become testes.
Na primjer, možete imati nekoga tko ima XY kromosomsku bazu i SRY gen na Y kromosomu govori pre-gonadama, koje svi imamo u fetalnom životu, da postanu testisi. Tako da u fetalnom životu testisi ispumpavaju testosteron.