The effects of amphetamines are similar to the effects of cocaine, but are

but there are differences:

- Price: a heaver user of cocaine spends $100 to $300 per day, whereas a heavy user of amphetamine spends about $50-$100 a day

- Quality of the rush or high: smoking or injecting cocaine or meth IV produces an intense rush followed by a high or euphoria. The majority of users claim that the rush and the high from cocaine is greater than that from amphetamines, however amphetamines generate greater amounts of prolonged energy

-Duration of action: cocaine's major effects last about 40 minutes, while amphetamines last 4-6 hours

- Manufacture: cocaine is plant-derived and amphetamines are synthetic

- addiction rate: methamphetamine users fall into addiction more quickly than cocaine users and enter treatment sooner

Hope this helps!

-Payshence

you know they are heterozygous for a trait because they have it as jj or jj.