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 ...

An egg cell and a sperm need to hold together tightly in the Fallopian tube in order to fuse, resulting in the creation of a new organism. One key part of this process involves the proteins Juno, on ...

Egg cells need to store large amounts of proteins and other molecules to support the earliest stages of development. But how do they organize this supply? Egg cells have a dedicated storage system, ...