The Polycomb group of epigenetic enzymes represses expression of developmentally regulated genes in many eukaryotes. This group includes the Polycomb repressive complex 1 (PRC1), which ubiquitylates ...

The modules provided on this site address challenging English structures and processes. Click on the title of a module that seems relevant to your educational concerns. Most of the modules contain the ...

ATK: Alliant Techsystems has delivered a technological first to NASA: a full-scale, crew module structure made of composite materials. The Composite Crew Module (CCM) is a unique capsule design that ...

The Mengtian, the third and last part of the three-module China Space Station basic structure that docked with the orbiting combination of earlier modules early on Tuesday, is expected to carry out a ...

Mengtian lab module conducted successful transposition in orbit at 9:32 am on Thursday, marking the completion of the China Space Station’s T-shape basic structure assembly. The Global Times learned ...