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Step One - thesciencebeat
Step One - thesciencebeat

... _____ Create a fact card for each organelle. Put the name of the organelle at the top of the index card. List the nickname of the organelle. List the primary function of the organelle. Information must be written in your own words. Things to include are: kind of cell it is found in, structure, prima ...
New roles for Nanos in neural cell fate determination revealed by
New roles for Nanos in neural cell fate determination revealed by

... transcription in Hydractinia commences at the morula/gastrula stage (Plickert et al., 2006). Nanos2 was a maternal transcript, asymmetrically deposited in the prospective oral pole of the embryo and in a Nuage-like deposition around the nuclei of early cleavage stages (Fig. 2A,B). A similar expressi ...
Mutations in a novel gene, myoblast city, provide evidence
Mutations in a novel gene, myoblast city, provide evidence

... attachments are forming on the epidermis (Fig. 1A). cells are only slightly elongated, but from about 15 hours AEL In embryos mutant for mbc, myosin expression begins on they stretch and send out long processes (Fig. 1C). These two schedule at 9 hours AEL, in cells that appear by their position myob ...
Microbiology 204 - UCSF Immunology Program
Microbiology 204 - UCSF Immunology Program

... Lazarski CA et al. The kinetic stability of MHC class II:peptide complexes is a key parameter that dictates immunodominance. Immunity 23:29-40, 2005 Shin J-S et al. Surface expression of MHC class II in dendritic cells is controlled by regulated ubiquitination. Nature 244:115-118, 2006. Fallang L-E, ...
Ontogeny of erythropoiesis
Ontogeny of erythropoiesis

... [16,17]. Over the next 8 days, primitive erythroid cells mature in a synchronous cohort as they undergo changes well recognized in maturing definitive erythroid precursors, including a limited number of cell divisions, accumulation of increasing amounts of hemoglobin, nuclear condensation, a progres ...
N-glycosylation and microtubule integrity are involved in apical
N-glycosylation and microtubule integrity are involved in apical

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Retinoic acid-mediated activation of HNF-3a
Retinoic acid-mediated activation of HNF-3a

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Biology Test Total marks: 102 - leavingcertbiology.net
Biology Test Total marks: 102 - leavingcertbiology.net

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Metabolic Incorporation of Stable Isotope Labels into Glycans
Metabolic Incorporation of Stable Isotope Labels into Glycans

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E6132 - Sigma
E6132 - Sigma

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physiological and chemical architecture of a lobster ganglion with
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Spontaneous zygogenesis in Escherichia coli, a form
Spontaneous zygogenesis in Escherichia coli, a form

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Common Docking Domain in Progesterone Receptor
Common Docking Domain in Progesterone Receptor

... ß The Author(s) 2013. Published by Oxford University Press. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0/), which permits non-commercial re-use, distribution, and reproduction in ...
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Amidase overexpression - Duke Trinity College of Arts and Sciences
Amidase overexpression - Duke Trinity College of Arts and Sciences

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File - need help with revision notes?

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Anillin, a Contractile Ring Protein That Cycles from the Nucleus to

... In the early Drosophila embryo, maternally expressed genes have been identified that effect metaphase furrow formation (Postner et al., 1992; Sullivan et al., 1993). Similarly, three zygotic genes have been identified that specifically effect cellularization. These genes encode three novel proteins ...
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Depletion of Calcium from the Lumen of Endoplasmic Reticulum

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Visualizing the actin cytoskeleton in living plant cells using a photo
Visualizing the actin cytoskeleton in living plant cells using a photo

... filter LP 470). This resulted in rapid loss of green fluorescence (Figure 2D) with a concomitant increase in red fluorescence (Figure 2E, F). It is known that transient expression methods such as the DNA-coated gold-particle bombardment employed by us result in variability between experiments and va ...
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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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