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Task 1: Determine the haemagglutination unit of influenza virus in
Task 1: Determine the haemagglutination unit of influenza virus in

... suspected of having a respiratory virus infection. Three shell vials would be set up. After 48 hours of incubation, two of the vials would be used. The supernatants would be pipetted off and saved. The glass cover slips would be washed gently and then fixed. One of them would be stained with a singl ...
PPT File
PPT File

... Copyright © 2011 Pearson Education Inc. ...
view as pdf - KITP Online
view as pdf - KITP Online

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Parallels between tissue repair and embryo morphogenesis
Parallels between tissue repair and embryo morphogenesis

... movements that bears a striking resemblance to various embryonic morphogenetic episodes. There are several ways in which repair recapitulates morphogenesis. We describe how almost identical cytoskeletal machinery is used to repair an embryonic epithelial wound as is involved during the morphogenetic ...
MAKEUP: Thyroid Hormone Synthesis
MAKEUP: Thyroid Hormone Synthesis

... - Forms mono-iodotyrosine then di-iodotyrosine Mono-iodotyrosine + Di-iodotyrosine = Tri-iodothyronine (T3) - Calaysed by peroxidase **↑activity with TSH** - 7% of thyroid hormone produced - 4-5 x more active than T4 - >99% protein bound - Binds 1° albumin and thyroxine binding pre-albumin (TBPA) - ...
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Early Development of the Japanese Spiny Oyster (Saccostrea
Early Development of the Japanese Spiny Oyster (Saccostrea

... become round after their release into sea water (Fig. 1C). The diameter of the fertilized egg is approximately 40 μm. About 60 min after fertilization, the polar lobe begins to form (Fig. 1D). Within 10 min after the polar lobe appears, the first cleavage begins (Fig. 1E). The polar lobe is incorpor ...
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View PDF - CiteSeerX

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Tricellulin regulates junctional tension of epithelial cells at tricellular
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... electrostatically extracted and accelerated, magnetically mass-analyzed and focused, and finally transported to the target chamber where a special bio-sample holder was installed (Fig 1). Ar and nitrogen (N) ions were used with energies of 15, 20 and 30 keV at fluences of 0.5, 1, 2, 4, 10, 15, and 3 ...
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Multiple Mechanisms of Resistance to Polyglutamatable and

... of plating, and drugs were added 24 h later. After 72 h of drug exposure, cells were trypsinized, and viability counts were determined by trypan blue exclusion (Westerhof et al., 1995a). IC50 values are depicted as the drug concentration at which cell growth is inhibited by 50% compared with control ...
PowerPoint format
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Cellular Transport PDF

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Amitosis

Amitosis (a- + mitosis) is absence of mitosis, the usual form of cell division in the cells of eukaryotes. There are several senses in which eukaryotic cells can be amitotic. One refers to capability for non-mitotic division and the other refers to lack of capability for division. In one sense of the word, which is now mostly obsolete, amitosis is cell division in eukaryotic cells that happens without the usual features of mitosis as seen on microscopy, namely, without nuclear envelope breakdown and without formation of mitotic spindle and condensed chromosomes as far as microscopy can detect. However, most examples of cell division formerly thought to belong to this supposedly ""non-mitotic"" class, such as the division of unicellular eukaryotes, are today recognized as belonging to a class of mitosis called closed mitosis. A spectrum of mitotic activity can be categorized as open, semi-closed, and closed mitosis, depending on the fate of the nuclear envelope. An exception is the division of ciliate macronucleus, which is not mitotic, and the reference to this process as amitosis may be the only legitimate use of the ""non-mitotic division"" sense of the term today. In animals and plants which normally have open mitosis, the microscopic picture described in the 19th century as amitosis most likely corresponded to apoptosis, a process of programmed cell death associated with fragmentation of the nucleus and cytoplasm. Relatedly, even in the late 19th century cytologists mentioned that in larger life forms, amitosis is a ""forerunner of degeneration"".Another sense of amitotic refers to cells of certain tissues that are usually no longer capable of mitosis once the organism has matured into adulthood. In humans this is true of various muscle and nerve tissue types; if the existing ones are damaged, they cannot be replaced with new ones of equal capability. For example, cardiac muscle destroyed by heart attack and nerves destroyed by piercing trauma usually cannot regenerate. In contrast, skin cells are capable of mitosis throughout adulthood; old skin cells that die and slough off are replaced with new ones. Human liver tissue also has a sort of dormant regenerative ability; it is usually not needed or expressed but can be elicited if needed.
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