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 ...

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 simplified model describing the mutual gamete activation during double fertilization in Arabidopsis. Before fertilization EC1 proteins accumulate in secretory vesicles of the egg cell (A). Likewise, ...

In a common metaphor used to describe human fertilization, sperm cells are competitors racing to penetrate a passive egg. But as critics have noted, the description is also a “fairy tale” rooted in ...

Fertilization occurs in the fallopian tubes. The fertilized egg may then implant on the wall of the uterus, leading to pregnancy. There are many misconceptions about fertilization and pregnancy. While ...