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Cell Membrane - WasmundScience
Cell Membrane - WasmundScience

... Endocytosis is the case when a molecule causes the cell membrane to bulge inward, forming a vesicle. Phagocytosis is the type of endocytosis where an entire cell is engulfed. Pinocytosis is when the external fluid is engulfed. Receptor-mediated endocytosis occurs when the material to be transported ...
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Leukaemia Section Chronic myelogenous leukaemia (CML) Atlas of Genetics and Cytogenetics
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Cell Biology: Theory and Laboratory Skills
Cell Biology: Theory and Laboratory Skills

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The argos Gene Encodes a Diffusible Factor

... contacts in the developing retina (Melamed and TrujilloCenoz, 1975). All the cells apart from the photoreceptors have apical projections at this stage. From early in pupal eye development, further defects are found in argosw7’ flies (Figures 2G-2L). The most striking of these is that there are many ...
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regulation of cell growth by vitreous humour
regulation of cell growth by vitreous humour

... a highly purified cartilage factor into rabbits resulted in the inhibition of tumourinduced neovascularization and subsequent tumour growth. Vitreous is another tissue that becomes avascular during development (Jack, 1972) and appears to possess antiangiogenic properties. Brem et al. (1976) observed ...
Presentation Title
Presentation Title

... • Degree of HOG pathway activation • Morphology – Cell growth patterns – Invasive Growth ...
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Cellular differentiation



In developmental biology, cellular differentiation isa cell changes from one cell type to another. Most commonly this is a less specialized type becoming a more specialized type, such as during cell growth. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover. Some differentiation occurs in response to antigen exposure. Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics. With a few exceptions, cellular differentiation almost never involves a change in the DNA sequence itself. Thus, different cells can have very different physical characteristics despite having the same genome.A cell that can differentiate into all cell types of the adult organism is known as pluripotent. Such cells are called embryonic stem cells in animals and meristematic cells in higher plants. A cell that can differentiate into all cell types, including the placental tissue, is known as totipotent. In mammals, only the zygote and subsequent blastomeres are totipotent, while in plants many differentiated cells can become totipotent with simple laboratory techniques. In cytopathology, the level of cellular differentiation is used as a measure of cancer progression. ""Grade"" is a marker of how differentiated a cell in a tumor is.
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