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  1. ... an extra copy of the Y chromosome in each of a male's cells. Although many males ... XYY syndrome are born in the United States each day. Many affected males are never diagnosed or ...
  2. ... absence of a bone called the radius in each forearm and a shortage (deficiency) of blood cells ... the other copy of the RBM8A gene in each cell. A small number of affected individuals have ...
  3. ... the presence of an additional X chromosome in each of a female's cells. Although females with ... X syndrome are born in the United States each day. People normally have 46 chromosomes in each ...
  4. ... small piece of chromosome 9 is deleted in each cell. The deletion occurs on the long (q) ... of the two copies of chromosome 9 in each cell.People with a 9q22.3 microdeletion are ...
  5. ... 000 genes. Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all ... of DNA bases. These small differences contribute to each person’s unique physical features. Scientists keep track ...
  6. ... of a small piece of chromosome 17 in each cell. The deletion occurs on the long (q) ... of the two copies of chromosome 17 in each cell.The deleted segment is surrounded by short, ...
  7. In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled ...
  8. ... one X chromosome and one Y chromosome in each cell, have underdeveloped or abnormal testes. They may ... are genetically female, with two X chromosomes in each cell, development of the internal and external reproductive ...
  9. ... of 11 to more than 100 repeated segments, each of which is about 3,300 DNA base ... have fewer genes that are turned on (active).Each of the repeated segments in the D4Z4 region ...
  10. ... in which individuals with two X chromosomes in each cell, the pattern normally found in females, have ... testicular disorder. People normally have 46 chromosomes in each cell. Two of the 46 chromosomes, known as ...
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