The sperm and the egg cell's nuclei compete for size directly after fertilization and this is necessary for proper embryonic ...

The development of an embryo is one of the most fundamental processes in biology. Early in this process, it is determined ...

It’s challenging to sustain a pregnancy when food is short, or conditions are otherwise tough. That’s why many mammalian embryos can postpone their growth to get through periods of environmental ...

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 ...

Sox9, a master regulator of cartilage formation, switches its target genes dynamically during embryonic limb development ...

Scientists at the University of California, Santa Cruz (UCSC), used CRISPR to engineer cellular models of embryos that mimic what happens in the first few days after reproductive cells meet. These ...

That's why many mammalian embryos can postpone their growth to get through periods of environmental stress and then re-enter development when conditions improve. This stalling of development is known ...

In the earliest hours after fertilization, an embryo takes its first steps toward becoming a living organism by shedding maternal control and activating its own genetic program. This critical process, ...