Despite being an essential developmental process, the understanding of human embryonic genome activation is limited, owing to the lack of in vitro cell models and ethical concerns. To advance ...

Scientists have created embryo models to help study the mysteries of early human development, the medical problems that occur before birth and why many pregnancies fail. These models are made from ...

A gene that turns on very early in embryonic development could be key to the formation of the placenta, which provides the ...

The majority of fertilized eggs die and are resorbed into the body. ZEISS Microscopy/Flickr, CC BY-SA As an evolutionary biologist whose career has focused on how embryos develop in a wide variety of ...

Using human stem cells, scientists have created human embryo-like structures inside petri dishes. These lab-grown blobs develop multiple structures that mimic a human embryo after implantation into ...

They see a microscopic flash at fertilization, a burst of fluorescence that marks a sudden release of zinc from the human egg ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Scientists have created embryo models to ...