You'll need to include this. 1  address. 2  credit. 3  mailing. Mailling.  payment.
You're both right. Genetics play a mild role in major depression (a bigger role in bipolar disorder). Genetics may serve as a predisposing factor to depression, but the evidence is growing that depression has a great deal to do with the ongoing and repetitive interactions within the family.
Tay Sachs Disease. Tay Sachs is a recessive genetic disease caused by a mutation in the hexosaminidase A gene, HEXA. A mutation in the gene causes fat molecules to accumulate in the brain.ay Sachs Disease. Tay Sachs is a recessive genetic disease caused by a mutation in the hexosaminidase A gene, HEXA. A mutation in the gene causes fat molecules to accumulate in the brain.