Activation of sperm surface protein . Research on mice revealed that a particular protein, found in all mammals called ...

A mouse study may pave the way for new approaches to contraception and infertility treatment. Sperm are surprisingly picky ...

A physics-based sperm-screening technique could offer a more accurate at-home test for people trying to conceive ...

Half of their genes come from each parent. Sex cells are called gametes. These are sperm and eggs (or ova) in animals, and pollen and ova in plants eggs (or ova ) are female gametes sperm are male ...

All mammals have a particular protein on the surface of sperm called CatSper. It controls the entry of the particles needed ...

Researchers have uncovered a "selfish" X chromosome in the fruit fly Drosophila testacea that manages to distort inheritance ...

Primordial germ cells, the founder cells of the germ line, are set aside in the early animal embryo, and divide and differentiate to produce sperm and egg, the male and female gametes. The ...

This valuable study reports the conservation of sperm-egg envelope binding by demonstrating successful recognition of the micropyle in fish eggs by the mouse sperm. However, the evidence supporting ...

Freezing eggs is expensive. A single cycle, including medication, costs an average of $12,000 to $15,000, plus another $500 to $1,000 each year for storage. Thawing and fertilizing the eggs later on ...

The northern white rhinoceros is one of the rarest animals on Earth, with just two females left and no natural way for the ...

WashU Medicine researcher Polina Lishko, a BJC Investigator and professor of cell biology and physiology, has shown in mice ...