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Cell Process
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Center for Research in Biological Systems
University of California, San Diego
9500 Gilman Drive
La Jolla, CA 92093-0608, USA
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: (858) 534-0276
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Search Results for
spermatogonium
(132 results)
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CIL:760
NCBI Organism Classification
Patiria miniata
Biological Process
reproduction
Cellular Component
chromatin
Upon electron bombardment, some elements, such as P, show an electron energy loss profile with a peak at a specific energy loss value. By collecting a series of images of a field at different energy l...
CIL:40983
NCBI Organism Classification
Nephrotoma suturalis
Biological Process
meiotic metaphase
Cellular Component
nuclear chromosome
This movie shows a Crane fly Nephrotoma suturalis sperm cell at metaphase of meiosis. Images were captured every 15 seconds for 35 minutes of cell division using polarized light microscopy. Eighth Pr...
CIL:10725
NCBI Organism Classification
Nephrotoma
Biological Process
male meiosis chromosome segregation
Cellular Component
spindle
Movie of anaphase A and B of meiosis I in primary spermatocytes of the crane-fly Nephrotoma suturalis. Time-lapse polarization microscopy using a Nikon Microphot SA, equipped for liquid crystal pola...
CIL:12372
NCBI Organism Classification
Nephrotoma
Biological Process
male meiosis chromosome segregation
Cellular Component
spindle
Time series images showing the dynamics of kinetchore microtubules during meiosis I in primary spermatocytes of the crane-fly Nephrotoma suturalis that were experimentally flattened. Time-lapse polari...
CIL:10723
NCBI Organism Classification
Nephrotoma
Biological Process
male meiosis chromosome segregation
Cellular Component
spindle
Movie of anaphase B (spindle elongation) of meiosis I in primary spermatocytes of the crane-fly Nephrotoma suturalis. Time-lapse polarization microscopy using a Nikon Microphot SA, equipped for liqu...
CIL:9060
NCBI Organism Classification
Nephrotoma suturalis
Biological Process
male meiosis chromosome segregation
Cellular Component
cytoskeleton
The events of meiosis I and II in a living insect spermatocyte beginning with the breakdown of the nuclear envelope at diakinesis through to the completion of cytokinesis. Testes from the Crane fly N...
CIL:36058
NCBI Organism Classification
Passeriformes
Biological Process
regulation of cell shape
Cellular Component
microtubule
Figure 426 (A-D) from Chapter 16 (Cytoplasmic matrix and cytoskeleton) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Stages of differentiation of the finch spermatozoon. A.)Early in spermatogenesis,...
CIL:10908
NCBI Organism Classification
Didelphinae
Biological Process
fertilization
Cellular Component
plasma membrane
This freeze fracture micrograph shows a region of membrane from the midpiece of opossum Didelphis virginiana sperm. This region of the sperm is notable for the repeating longitudinal bands composed ...
CIL:436
NCBI Organism Classification
Patiria miniata
Biological Process
reproduction
Cellular Component
male germ cell nucleus
Transmission electron micrograph of unstained cryo-section of a sperm cell of the starfish Patiria miniata. Echinoderm sperm nuclei are unusual in that chromatin fibers are clearly seen, allowing the...
CIL:775
NCBI Organism Classification
Patiria miniata
Biological Process
fertilization
Cellular Component
nuclear chromatin
Phosphorus has a characteristic electron energy loss with an edge at 160 eV. The Zeiss 902 electron microscope permits images to be recorded at different energy losses which can be digitized and proce...
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