Image shows a metaphase spread revealing the 46 human chromosomes (blue). Telomeres have been labeled using PNA-FISH and appear as pale dots at the ends of each chromatid.

Scanning probe/atomic force microscope image of human chromosomes in a metaphase spread. Additional scanning probe images of chromosomes are available as CIL 39000, 38915, and 39013.

Sand dollar embryos expressing GFP-H2B going thru stages of mitosis.

Fragile X chromosome made visible by atomic force microscopy (AFM). The arrow indicates the fragile site. Additional AFM chromosome images are available as CIL 38987, 39000, and 38915.

Scanning probe/atomic force microscope image of human chromosome 1. Additional scanning probe chromosome images are available as CIL 38987, 39000, and 39013.

Time lapse movie of a developing sand dollar embryo expressing GFP-histone H2B. The movie shows several rounds of mitoses.

Sand dollar embryos expressing GFP-H2B going thru stages of mitosis. Video is animated with the cursor indicating the stages of mitosis and the morphological characteristics of the stage during the t...

Example of human chromosome labeling and identification using multi-color fluorescence in situ hybridization (FISH) with probes specific for the DNA of individual chromosomes. Using this chromosome p...

High voltage (1MeV) transmission electron microscopy image of an isolated metaphase chromatid pair from a mouse A9 cultured cell, showing the fiber-like underlying structure. The image was taken with ...

High voltage (1MeV) transmission electron microscopy image of an isolated metaphase chromatid pair from a mouse A9 fibroblast, showing the fiber-like structure. The image was taken with a specimen til...