How is all of that DNA packaged so tightly into chromosomes and squeezed into a tiny nucleus? Long, slender DNA molecules wind around proteins and fold in complex ways to form chromosomes.

The 3D electron microscopy imaging is available using Serial Block Face (SB-EM ... In biological research, ET can be applied to study unique structures, which are in the context of a cell. ET is ...

The diagram below shows the same plant cell, as viewed with the light microscope, and with the transmission electron microscope ... in anaerobic respiration. Nucleus Contains DNA which carries ...

A complex molecular machine, the spliceosome, ensures that the genetic information from the genome, after being transcribed ...