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, ...

A Northwestern Medicine study has shed light on one of the most intricate construction projects in biology: how cells build and coordinate the internal scaffolding needed to create a healthy egg. The ...

Mature egg cells, or oocytes, are essential for fertilization in assisted reproductive technologies. However, some 'denuded' oocytes, or those lacking the protective granulosa cell layer, fail to ...

A new approach for delivering miniature research tools into the interior of egg cells and embryos has been developed, resolving a major bottleneck to using the gene-editing tool CRISPR-Cas9 in many ...

More than one-sixth of adults around the world experience infertility in their lifetime. There is a high unmet need not only for increased access to affordable, high-quality fertility care for those ...

Descriptions of the embryo go back at least to the time of Aristotle, but it has only been since the late 19 th century and early 20 th century that advances in experimental approaches allowed ...

The acorn worm (Saccoglossus kowalevskii) is an important research organism in evolutionary developmental biology and is collected in Woods Hole. Its eggs are very fragile and they typically don’t ...