The animal developmental program proceeds in a given precise pattern of space and time. This spatial and temporal pattern is controlled by a strikingly complex genomic regulatory system. Investigating ...

Haploid embryonic stem cells (haESCs) have been established in many species. Differentiated haploid cell line types in mammals are lacking due to spontaneous diploidization during differentiation that ...

A major question in evolutionary biology is how mating patterns affect the fitness of offspring. However, in animals and seed plants it is virtually impossible to investigate the effects of specific ...

Stem cell research holds huge potential for medicine and human health. In particular, human embryonic stem cells (ESCs), with their ability to turn into any cell in the human body, are essential to ...

A haploid cell with 23 chromosomes (left), and a diploid cell with 46 chromosomes (right). Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!