Typically, female mouse embryos with two X chromosomes develop ovaries because a gene called Sox9 is suppressed. In male ...

A team of researchers has reported a breakthrough in making sperm cell precursors in vitro that could be used in a number of applications, such as identifying infertility mechanisms and technologies ...

One extra letter of DNA. That was all it took to override an entire chromosome’s worth of instructions and turn a female ...

Scientists have introduced lab-grown testicle organoids that closely mimic the structure and function of natural testes, offering a potential breakthrough in infertility treatment. Organoids, ...

This cross section through several mouse testes shows how sperm are made and maintained. The testes are where sperm cells are made. A human male can produce between 70 million and 150 million sperm ...

The testis is responsible for sperm production and testosterone synthesis. Abnormalities in testis development and function lead to disorders of sex development (DSD) and male infertility. Currently, ...