Chromosome 15

CHROMOSOME 15 :

• Albinism
• Angelman syndrome (Maternal deletion or Paternal Disomy)
• Prader willi syndrome (Paternal Deletion or Maternal Disomy)
• Tay Sachs disease.
• Marfan syndrome.
• Bloom syndrome. 

Point to note : 

Fibrillin gene 1 (FBN 1) - On chromosome 15 - Marfan's Syndrome.

Fibrillin gene 2 (FBN 2) - On chromosome 5 - Beals syndrome

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Mnemonic :
Its usually confusing to remember Prader willi and Angelman , deletion or disomy , maternal or paternal.

So here is the way

Prader Willi -- is Paternal Deletion (or maternal uniparental disomy) and Angelman's is vice-a-versa.

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