Each eukaryotic chromosome is composed of DNA coiled and condensed around ... Human chromosomes can be differentiated from one another under a microscope by their lengths and by the position ...

Archaea and bacteria are two different domains of cellular life. They are both prokaryotes, as they are unicellular and lack a nucleus. They also look similar (even under a microscope). However ...

Nature Protocols - Virus and prokaryote enumeration from planktonic aquatic environments by epifluorescence microscopy with SYBR Green I. ... For counting viruses under the microscope, ...