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.
The US$665-million High Energy Photon Source (HEPS) outside Beijing puts China among only a handful of countries that have fourth-generation synchrotron light sources.
Clarifying how genome duplication and triplication events shaped early vertebrate genomes has presented a challenge in evolutionary biology. The genome of the jawless hagfish provides a missing piece of this puzzle.