False, the inventors claims were clearly not well tested
A homozygous trait is when both traits are the same size for example it could be AA or aa but not Aa
Amphetamine like adderall,vyvanse are weaker because they do not have a methyl group. adding a methyl group to amphetamine makes N-Methylamphetamine. a Methyl group makes it much more potent therefore you need less to get high and it is much more powerful.
for more info go to
https://psychonautwiki.org/wiki/Adderall
https://psychonautwiki.org/wiki/Meth
The appropriate line is "I'm here if you want to talk."