1.4 Biological Bases of Behaviour
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Barron's 1.4
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12 Terms
Genetic Predisposition
Increased chance of developing a certain specific trait or condition due to genetic code
Every human cell has _ chromosomes in _ pairs
46, 23
Chromosomes are made up of…
Deoxyribonucleic acid (DNA)
Identical twins
Monozygotic twins
Dopamine
Motor movement/alertness
Deficit: Parkinson’s Disease
Excessive: Schizophrenia
Serotonin
Mood control, hunger, sleep, arousal
Deficit: clinical depression
Norepinephrine
Alertness, arousal
Deficit: depression
Glutamate
Excitatory neurotransmitter, learning and memory
Excessive: migraines and seizures
GABA
Major inhibitory neurotransmitter
Deficit: anxiety, sleep problems
Endorphins
Natural “painkiller,” pain control
Addictions
“Runner’s high”
Substance P
Pain perception
Intense/lack of pain perception
Acetylcholine (ACh)
Motor movement/muscle action
Deficit: Alzheimer’s
Involved in Myasthenia gravis (MG)
Antibodies destroy the communication between nerves and muscle
Skeletal muscle weakness
Note 
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