Examlex
What procedure is used to obtain embryonic or fetal chromosomes for karyotyping?
Opium
A narcotic drug obtained from the opium poppy, used historically in medicine for pain relief and sedation.
Stimulants
Substances that elevate mood, increase feelings of well-being, and enhance energy and alertness.
Depressants
A class of drugs that reduce the functioning of the nervous system and can lead to decreased arousal or stimulation in individuals.
Narcotics
A class of depressant drugs derived from the opium poppy that produce both pain-relieving and calming effects.
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