For decades, scientists have struggled to study this moment in humans because of ethical restrictions and limited access to ...

Life begins with a single fertilized cell that gradually transforms into a multicellular organism. This process requires ...

Scientists are exploring ways to mimic the origins of human life without two fundamental components: sperm and egg. They are coaxing clusters of stem cells – programmable cells that can transform into ...

A small tissue fold in fly embryos, once thought purposeless, plays a vital role in stabilizing tissues. Researchers show that it absorbs stress during early development, and its position and timing ...

Magdalena (Magda) Zernicka-Goetz, today a developmental and stem cell biologist at the University of Cambridge and California Institute of Technology, recalled being an artistic child who enjoyed ...

What do the earliest stages of a pregnancy look like? Embryonic development has been extensively studied, but most of our knowledge of the earliest stages of a growing baby come from stationary ...

Structures and transposition mechanisms of TEs. In the nucleus, LINE-1 ribonucleoproteins, facilitated by ORF2p, initiate transposition by cleaving one DNA strand, creating 3'OH ends, followed by ...

The research team discovered that glassware used to manipulate and culture fertilized eggs in the fields of assisted reproductive technology (ART), livestock farming, and basic research contains toxic ...