The limit of resolution of the transmission electron microscope is now less than 1 nm. The TEM has revealed structures in cells that are not visible with the light microscope. We can now study ...

The trunk of each 'Christmas tree' (a transcription unit) represents a DNA molecule; the tree branches (granular strings attached to the DNA) are RNA molecules that have been transcribed from the ...

Let's take a look at how to observe cells under ... microscope. Go find those animal cells! Unlike the plant cells, animal cells are soft and fleshy. Animals don't need cells to keep their structure.