Prader-Willi syndrome is caused by a missing gene on chromosome 15. Normally, parents each pass down a copy of this chromosome. The defect can occur in a couple of ways: The father's genes are missing on chromosome 15; There are defects or problems with the fatherâs genes on chromosome 15
poison meaning, definition, what is poison: a substance that can make people or animals ill or kill them if they eat or drink it: . Learn more.
THEY ARE ALL INTERRELATED. A Venom is a toxin & also poison. A Poison is a toxin but not Venom. But a toxin can be venom. also a toxin can be poison. Let us define each of them. Toxin ( biological definition ) - A toxin is a poisonous substance produced within living cells or organisms.