In human cells, there are about 20,000 genes on a two-meter DNA strand—finely coiled up in a nucleus about 10 micrometers in diameter. By comparison, this corresponds to a 40-kilometer thread packed ...
James D. Watson, the American molecular biologist who helped discover the structure of DNA, has died aged 97, reigniting ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback