The earliest days after fertilization, once a sperm cell meets an egg, are shrouded in scientific mystery. The process of how a humble single cell becomes an organism fascinates scientists across ...

Protein phosphorylation is a major posttranslational modification carried out by protein kinases that constitute an integral part of complex signaling networks in eukaryotes. Casein kinase 1 (CK1) is ...

Patterns that guide the development of feathers and other features can be set by mechanical forces in the embryo, not just by gradients of chemicals. One of the longest-standing questions in biology ...