Licensing

Attribution_by_nc_nd
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Description

Transmission electron micrograph of a bone marrow orthochromatic erythroblast from guinea pig showing terminal differentiation in erythrocyte formation. Accompanying the cessation of most transcription is the conversion of most nuclear chromatin to dense heterochromatin. Heterochromatin is excluded from regions of nuclear envelope with nuclear pores. This micrograph shows nuclear condensation at an advanced stage in. Figure 116 from Chapter 4 (Nucleus) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. A PDF copy of the corresponding chapter is available on the ASCB's BioEDUCATE website.

Biological Sources

NCBI Organism Classification
Cavia porcellus
(Domesticated Guinea Pig)
Cell Type
erythroblast
Cellular Component
nucleus
heterochromatin
nuclear envelope
nuclear pore

Biological Context

Biological Process
nucleus organization
chromatin organization

Attribution

Name
Don W. Fawcett
Publisheds
ISBN 0721635849
from: Don W. Fawcett M.D �The Cell' 2nd edition, W.B. Saunders Chapter 4 (Nucleus)
Link
ASCB BioEDUCATE Program

Grouping

This image is part of a group.

Imaging

Image Type
film
Imaging Mode
transmission electron microscopy (TEM)
detection of electrons
Parameters Imaged
electron density
Source of Contrast
differences in adsorption or binding of stain
Visualization Methods
uranyl salt
osmium tetroxide
lead salt
Processing History
Image extracted from .pdf file of 'The Cell'
Data Qualifiers
processed data

Dimensions

Spatial Axis Image Size Pixel Size
X 898px ——
Y 1264px ——
*CIL – Cell Image Library accession number. Please use this to reference an image.