The arrangement of the nucleosome-containing DNA fibers of chromosomes in mitotic HeLa
cells was studied by thin sectioning and electron microscopy. Thin sections of mitotic cells …

Electron microscopy of whole mount preparations of mammalian and avian interphase
nuclei indicate that the chromatin fibers converge and attach to the annuli of the nuclear …

One of the most remarkable features of eukaryotes is the large amount of DNA which is
contained in the nucleus of each cell. The diploid nucleus of a human cell, for example …

The organization of chromosomes in mitotic HeLa cells was investigated by serial sectioning
and electron microscopy. Mitotic HeLa cells were resuspended in a hypotonic buffer …

Metaphase chromosomes released from cells in the presence of Joklik's suspension media
by vortex-mixing with 0.5 mm glass beads have been analyzed by electron microscopy. In …

Thin sections of the testicular follicles of the grasshopper Laplatacris dispar were studied
under the electron microscope. In the primary spermatocytes, during meiotic prophase, three …

Evidence is presented that the 2 50 A thick chromosome fiber consists of clusters of
nucleosomes (superbeads) which are heteroge Page 1 volume 6 Number 81979 Nucleic Acids …

Electron micrographs of mitotic chromosomal fibers from Chinese hamster ovary cells
resemble very closely published electron micrographs of chromatin from interphase nuclei …

Publisher Summary The nucleolus is organized at the nucleolus-organizing region of the
chromosomes, which are generally visible as secondary constriction regions in metaphase …

New methods are presented for the bulk isolation of metaphase chromosomes from HeLa
cells, and an electron microscopic study of thin sections of these chromosomes is presented …