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These changes include an extra copy of part of chromosome 7 in each cell (partial trisomy 7) or a missing segment of the chromosome in each cell (partial monosomy 7). In some cases, several DNA building blocks (nucleotides) are deleted or duplicated in part of chromosome 7. A circular structure called ring chromosome 7 is also possible. A ring ...
7q11.23 duplication syndrome (also called dup7 or 7dup or duplication of the Williams-Beuren syndrome critical region) is a rare genetic syndrome caused by micro-duplication of 1.5-1.8 mega base in section q11.23 of chromosome 7.
Different genetic changes involving the Gli3 gene can cause Greig cephalopolysyndactyly syndrome. In some cases, the condition results from a chromosomal abnormality, such as a large deletion or translocation of genetic material, in the region of chromosome 7 that contains the GLI3 gene.
[citation needed] An example of trisomy in humans is Down syndrome, which is a developmental disorder caused by an extra copy of chromosome 21; the disorder is therefore also called "trisomy 21". [7] An example of monosomy in humans is Turner syndrome, where the individual is born with only one sex chromosome, an X. [8]
7p22.1 microduplication syndrome (also called Trisomy 7p22.1) is a genetic disorder which is characterized by cranial and facial dysmorphisms, intellectual disability, and motor-speech delays. [1] It is caused by a duplication of the p22.1 region of chromosome 7.
Binge eating disorder may be caused by: Genetics. Changes in brain chemicals. Depression or emotions like stress, anger, or sadness.
A chromosomal disorder is a missing, extra, or irregular portion of chromosomal DNA. [33] It can be from an atypical number of chromosomes or a structural abnormality in one or more chromosomes. An example of these disorders is Trisomy 21 (the most common form of Down syndrome), in which there is an extra copy of chromosome 21 in all cells. [34]
Bipolar disorder is a long-term mood disorder characterized by major fluctuations in mood — both high and low — that can impact daily functioning and behavior. Bipolar Disorder: 4 Types & What ...