1A. Image of an amoeba shortly after transplant of a labeled nucleus (arrow). 1B. Autoradiograph image of the amoeba shown in 1A. Radioactivity appears in black, and is confined to the nucleus ...

The film explores the structure and function of plant and animal cells using a microscope. It begins with observing onion ...

The transitional state of this social amoeba is intriguing ... showed that Dictyostelium has a focus of organization in the nucleus, to which all the chromosomes are attached—they come out ...