For decades, scientists have wrestled with the question: To what extent do genetics determine lifespan? Researchers now say that, thanks to research published today (September 29) in Science, they ...

Hormonal birth control methods are highly effective, but for many people who take them, they have undesirable side effects. But these could someday be avoided with the advent of fast-acting ...

"This study has important implications for understanding male infertility as these genes are well conserved in humans," said Sharma, an assistant professor of molecular, cell, and developmental ...

Figure 1: Nucleus donor cells and a clone. We found that 50-58% of the activated oocytes developed to morulae or blastocysts in vitro, but only 3 of 274 transferred embryos (1%) reached full term ...