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 artificial cell nucleus (right) constructed using the purified DNA was morphologically very similar to the natural cell nucleus derived from an egg (left).

thin compartments of the endoplasmic reticulum or the compacted chromatin within the nucleus. An electron micrograph therefore provides an excellent blueprint of a cell's inner structures.

Then they inserted the needle of a scanning tunneling microscope to read the stored information from the electron interacting ...

elegans eggs are centrifuged, the cell nucleus is displaced from the center of the cell. To convert centrifugal speed into ...