In an advance for treating male infertility, researchers transplanted a patient with his own sperm-forming stem cells that ...

The path from the initial discovery of sex chromosomes ... Henking noticed that some wasp sperm cells had 12 chromosomes, while others had only 11 chromosomes. Also, during his observation of ...

Two new landmark studies show how a seeming tangle of DNA is actually organized into a structure that coordinates thousands of genes to form a sperm cell. The work, published March 3 as two papers ...

New work from UC Davis and the University of Utah shows how the 3D structure of DNA inside a germ cell commits it to develop into a sperm cell. The discovery could improve understanding of fertility ...

A Yale-led research team has uncovered how a naturally occurring biological mechanism is able to prevent sperm cells from interacting with an egg, preventing fertilization. The discovery, found in ...

esearchers have performed the first known transplant of sperm-producing stem cells in hopes of restoring fertility in a man ...

These primordial germ cells are initially "bipotent"—able to become either sperm or eggs. But while the embryo is still snug in the womb, its bipotent cells commit to one path or another and ...

The discovery, identified in rodent models, offers a new path for scientific research ... mechanism found in mammals is able to prevent sperm cells from interacting with an egg, preventing ...

But while the embryo is still snug in the womb, its bipotent cells commit to one path or another and once they cross that threshold, they cannot go back. Defining the gene targets of ZBTB16.

The discovery, identified in rodent models, offers a new path for scientific research ... a protein on the surface of sperm cells, and JUNO, a receptor on the egg. The IZUMO1-JUNO connection ...