Depiction of an early stage embryo. nobeastsofierce Science / Alamy Stock Photo In human embryos, testes in males and ovaries in females begin to develop at around four weeks, with sex determination ...

In mammals, sex differentiation relies on the establishment of chromosomal, or genetic, sex at fertilization, with subsequent differentiation of the gonad according to the genetic sex and ...

The gonad arises as a bipotential organ primordium. Expression of the Y-linked gene, Sry, in the bipotential gonad leads to the differentiation of Sertoli cells, which orchestrate testis development.

The research is being presented at the Joint Congress of ESPE and ESE in Copenhagen Denmark, 10-13 May 2025. A new model of tiny human ovary organoids, or ovaroids, has been developed from stem cells, ...

Early in fetal development, a mass of cells known as the bipotential gonad has the possibility of giving rise either to ovaries or testes, reproductive organs that contribute to many of the ...

A new model of tiny human ovary organoids, or ovaroids, has been developed from stem cells, according to research presented at the first Joint Congress between the European Society of Paediatric ...

In a new study published in Water Biology and Security, scientists from the Ocean University of China have constructed the first detailed cell map of the gonad in the hermaphroditic bay scallop ...

Jenny Graves has received funding from ARC and NHMRC. Some babies are born with a genetic variant that leads to atypical sexual development. It can result in the child being neither a typical boy nor ...