Human embryos embrace asymmetry to form the body
The cells generated by the very first division of the fertilized egg make a lopsided contribution to the body’s organs and tissues.
The cells generated by the very first division of the fertilized egg make a lopsided contribution to the body’s organs and tissues.
Cheap data and the absence of coincidences make maths an ideal testing ground for AI-assisted discovery — but only humans will be able to tell good conjectures from bad ones.
Some genes carry an ‘imprint’ on either the maternal or the paternal copy, which determines whether or not that copy is expressed. This 1984 discovery changed how scientists think about gene regulation and inheritance.