Science Source Feb 2010
EN_90286490_0444
![Science Source Feb 2010](img/medium/arch1/dvd0113/29/EN_90286490_0444.jpg)
Transmission electron micrograph of a basal cell from the epidermis of the ammocoete of Petromyzon fluviatilis. At this high magnification, keratin filaments appear as punctate of elongate profiles depending on their orientation in the section. They are uniform in size, approximately 9 nm thick, and may have a beaded appearance along their length as though composed of repeating subunits. Among the filaments microtubules (at arrows) are occasionally seen.
2010-02-13
EAST NEWS
Science Source
Don W. Fawcett
9c3473
2,73MB
37cm x 26cm by 300dpi
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