Human bodies have to be built from a single egg cell that's fertilized by a sperm cell. Many rounds of cell division occur as the body is developing, and it seems that there are plenty of chances for ...

A microscope image of a human egg contains a nucleus taken from a skin cell. (Mitalipov Laboratory at Oregon Health & Science University) WASHINGTON — Oregon scientists used human skin cells to create ...

Early lab work shows reprogrammed skin cells can yield embryos, hinting at future infertility solutions but raising safety questions that demand more study. Infertility affects millions of people ...

Who hasn't seen it before: the view through the microscope in which a sperm penetrates an egg cell and fertilizes it. This fundamental step in procreation happens dynamically and seemingly without ...

In human cells, DNA carries chemical or "epigenetic" marks that decide how genes will be used in different tissues. Yet in a ...

As Election Day approaches, there's a national spotlight on reproductive health care. This includes a medical process hopeful parents go through to grow their families called in vitro fertilization.

(Reuters) -Human skin cells may one day be used to create functional human eggs in a step toward helping women have their own genetic children when their natural eggs are dysfunctional, according to ...

It's a commonly held belief: Sperm cells are like runners in an epic race, competing against each other for access to the coveted egg at the finish line. The egg, in turn, waits patiently for the ...

Sperm are basically cells with a tail. It can seem surprising that they are able to navigate and swim with purpose. New research has shown that sperm are even able to switch up directions, and alter ...