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The Philadelphia chromosome or Philadelphia translocation (Ph) is a specific genetic abnormality in chromosome 22 of leukemia cancer cells (particularly chronic myeloid leukemia (CML) cells). This chromosome is defective and unusually short because of reciprocal translocation , t(9;22)(q34;q11), of genetic material between chromosome 9 and ...
The schematic karyogram in this section is a graphical representation of the idealized karyotype. For each chromosome pair, the scale to the left shows the length in terms of million base pairs, and the scale to the right shows the designations of the bands and sub-bands.
The first fusion gene [1] was described in cancer cells in the early 1980s. The finding was based on the discovery in 1960 by Peter Nowell and David Hungerford in Philadelphia of a small abnormal marker chromosome in patients with chronic myeloid leukemia—the first consistent chromosome abnormality detected in a human malignancy, later designated the Philadelphia chromosome. [3]
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The influences of image schemas is not only seen in cognitive linguistics and developmental psychology, but also in interface design [6] and more recently, the theory has become of increased interest in artificial intelligence [7] and cognitive robotics [8] to help ground meaning.
This abnormal chromosome was dubbed the Philadelphia chromosome - as both scientists were doing their research in Philadelphia, Pennsylvania. Thirteen years later, with the development of more advanced techniques, the abnormal chromosome was shown by Janet Rowley to be the result of a translocation of chromosomes 9 and 22. Identification of the ...
The presence of the Philadelphia chromosome can help predict how the cancer will progress and provides a target for molecular therapies. Emanuel syndrome is a translocation of chromosomes 11 and 22. Originally known as supernumerary der (22) syndrome, it occurs when an individual has an extra chromosome composed of pieces of the 11th and 22nd ...
A karyotype of an individual with trisomy 21, showing three copies of chromosome 21. An abnormal number of chromosomes is known as aneuploidy, and occurs when an individual is either missing a chromosome from a pair (resulting in monosomy) or has more than two chromosomes of a pair (trisomy, tetrasomy, etc.).