Transmission electron micrograph of longitudinal section through mouse spermatozoon showing characteristic hooked shape of sperm head and extremely compact DNA-protamine in the nucleus. Figure 117 fr...

Figures 222 (upper) and 223 (lower) from Chapter 7 (Mitochondria) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Mitochondrial matrix granules are located within the space bounded by the inner mitocho...

Hamster sperm fertilizing a hamster oocyte. This scanning electron micrograph shows hamster sperm fertilizing a hamster oocyte. Fertilization was performed in vivo. Sperm are shown binding to the out...

Surface of a mouse oocyte This transmission electron micrograph shows the cortex of a mouse oocyte that was undergoing fertilization. The sample was fixed using glutaraldehyde and osmium tetroxide, em...

High Voltage (1MeV) TEM image of a 'thick' section of polytene chromosome from salivary gland of 3rd instar larva of Drosophila melanogaster showing the band-interband organization. This image was cap...

Transmission electron micrograph of guinea pig pancreas membrane fractionations. Field is from the bottom quarter of the pellet . At this level the preparation consists primarily of large single she...

Transmission electron micrograph of mitochondria and lipid droplets from guinea pig pancreas. The use of osmium tetroxide as a fixative for electron microscopy was first described by Dr. Palade at the...

Transmission electron micrograph of a mitochondria from the protist Plasmodium. The use of osmium tetroxide as a fixative for electron microscopy was first described by Dr. Palade at the Rockefeller....

An image of slice 210 from the reconstructed volume of a tomographic data set from Caulobacter crescentus. This image has been downsampled from the raw data image which can be accessed using the link...

A 512 by 512 image from the slice by slice reconstruction of a caulobacter crescentus specimen. This image has been downsampled from the raw data image which can be accessed using the link provided t...