Each of us has enough DNA to reach from here to the sun and back, more than 300 times. How is all of that DNA packaged so tightly into chromosomes and squeezed into a tiny nucleus?

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

Light and electron microscopy have distinct limitations. Light microscopy makes it difficult to resolve smaller and smaller features, and electron microscopy resolves small structures, but samples ...

The diagram below shows the same plant cell, as viewed with the light microscope, and with the transmission electron microscope. Animal and plant cells have certain structures in common.