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.

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.

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 ...

A Japanese team has developed a technique to insert chloroplasts isolated from algae into animal cells, a feat that could revolutionize sustainable energy and how artificial meat and organs are ...

Below the basic structure is shown in the same animal cell, on the left viewed with the light microscope, and on the right with the transmission electron microscope. Cytoplasm A jelly-like ...