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Chuvash erythrocytosis or Chuvash polycythemia is an autosomal recessive form of erythrocytosis endemic in patients from the Chuvash Republic in Russia. Chuvash erythrocytosis is associated with homozygosity for a C598T mutation in the von Hippel–Lindau gene ( VHL ), which is needed for the destruction of hypoxia-inducible factors in the ...
EL2 and EL3: The most common genetic defects (present in two-thirds of all cases of hereditary elliptocytosis) are in genes for the polypeptides α-spectrin or β-spectrin. These two polypeptides combine with one another in vivo to form an αβ heterodimer. These αβ heterodimers then combine to form spectrin tetramers. These spectrin ...
HbF is composed of two α globins and two γ globins (α 2 γ 2). [13] Adult Hb (HbA) is the predominant Hb in children by six months of age and onward; it constitutes 96-97% of total Hb in individuals without a hemoglobinopathy. It is composed of two α globins and two β globins (α 2 β 2). [14]
These clathrin-coated pits are short lived and serve only to form a vesicle for transfer of particles to the lysosome. The clathrin-coated pit invaginates into the cytosol and forms a clathrin-coated vesicle. The clathrin proteins will then dissociate. [2] What is left is known as an early endosome. The early endosome merges with a late endosome.
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I think merging is not a good idea. Because I think there is a real difference between Erythrocytosis and Polycytemia (Vera). While Erythrocytosis is present in every body but over over exposed in some bodies of good RBC, while Polycytemia (Vera) is a form caused by a defective DNA structure and need treatment.
Normal adult hemoglobin is composed of four protein chains, two α and two β-globin chains arranged into a heterotetramer. In thalassemia, patients have defects in the noncoding region of either the α or β-globin genes, causing ineffective production of normal alpha- or beta-globin chains, which can lead to ineffective erythropoiesis ...
Crossing over occurs between prophase I and metaphase I and is the process where two homologous non-sister chromatids pair up with each other and exchange different segments of genetic material to form two recombinant chromosome sister chromatids. It can also happen during mitotic division, [1] which may result in loss of heterozygosity.