When a sperm fertilises an egg, each contributes a set of chromosomes to the resulting embryo, which at these very early stages is called a zygote. Early on, zygotic genes are inert,…
Faced with the prospect of costly in vitro fertilisation (IVF) but with no help from insurance coverage, some infertile couples feel pressure to transfer multiple embryos in an attempt…
A species of algae long known to associate with spotted salamanders has been discovered to live inside the cells of developing embryos, say scientists from the U.S. and Canada, who…
As our bodies form, cells within the embryo divide and separate. Certain cells come together to form the outer layer, or ectoderm, of the early embryo, and give rise to tissue such…
Reporting in Nature, scientists from Thomas Jefferson University have determined that a single protein called FADD controls multiple cell death pathways, a discovery that could lead…
Scientists at The Wistar Institute and the University of Pennsylvania School of Medicine report the discovery of protein markers that could provide physicians with the first reliable…
University of Michigan researchers have uncovered molecular signals that regulate catch-up growth - the growth spurt that occurs when normal conditions are restored after a fetus, young…
A SCUBA expedition in Australia and New Zealand to find the rare embryos of an unusual shark cousin enabled American and British researchers to confirm new developmental similarities…
A University of Adelaide reproductive biologist has achieved a major breakthrough in IVF technology that is expected to help millions of women around the world who have suffered previous…
Researchers have developed a microfluidic device that automatically orients hundreds of fruit fly and other embryos to prepare them for research. The device could facilitate the study…