While many of life's mysteries remain unsolved, every biologist can describe the basic processes performed by a living organism, including energy use, reproduction, growth and development. While these ...

A basic business principle is that no worker is irreplaceable; that also holds true for most proteins, the cellular factory workers of our bodies. If we fire a protein—that is, permanently delete it ...

Always ready to tinker with the basic life processes if they can improve the breed, agricultural geneticists have experimentally transplanted embryos of cows, sheep and mice from high-quality mothers ...