Prader-Willi syndrome (PWS) is a caused by a lack of genetic material in 15q11.2-13 . Approximately 70% of PWS is related to deletion. Based on this information, it can be determined that PWS is a
a. chromosome disorder. c. complex gene disorder.
b. single gene disorder. d. multifactorial disorder.
A
15q11.2-13 indicates that PWS occurs on chromosome 15 . The p and q labels and bands are used to specify the location of specific DNA sections on the chromosome. There are also sub-bands within the major bands. In chromosome disorders, the entire chromosome or very large segments of the chromosome are damaged, missing, duplicated, or otherwise altered.
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