New research presented today at the European Society for Paediatric Endocrinology meeting has found a genetic region, which may control testicle development in the foetus. Men have XY sex chromosomes, ...

Changing just a single base in a specific DNA region of a female mouse embryo led to the development of male reproductive organs. A research team led by Nitzan Gonen at Bar-Ilan University in Israel h ...

Bar-Ilan University researchers use CRISPR tool to alter Enh13 switch controlling Sox9 gene, causing XX mice to develop as males; study may help explain other genetic mutations The post With a switch ...

image: One of the significant challenges in sex reversal research is the lack of an in vitro system to model and study variants found in Disorders of Sex Development (DSD) individuals. A study ...

The correct development of two distinct sexes from a sexually undifferentiated, bipotential embryo is a multi-step process that is essential for mammalian reproduction. Disorders of sexual development ...

A gene essential to the growth and development of most organ systems in the body also is vital to female, but not male, embryonic sexual development, scientists report. A gene essential to the growth ...

Human sperm cells travel up to 6 meters in their transit from testes to penis, and most of that journey occurs in the epididymis, a tightly coiled tube that primes the cells for their ultimate task: ...

Descriptions of the embryo go back at least to the time of Aristotle, but it has only been since the late 19 th century and early 20 th century that advances in experimental approaches allowed ...

Last week, the International Olympic Committee announced it will determine whether athletes are eligible for women’s events by mandating a once-in-a-lifetime screening for the male-determining gene, ...