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Psych - Biological

The biological approach - key terms

TermDefinition
CNS brain and spinal cord
Genes units of inheritance
Genome hereditary information
Genome lag evolution works slowly
Genotype genetic makeup of a person
Phenotype The observable differences between people that develops as their genotype interacts with their environment
MZ twins twins that share 100% DNA
DZ twins twins that share 50% DNA
Chromosomes Structures containing genetic material
SRY genes Gene responsible for initiation of male development process
Testosterone male sex hormone
Hemisphere one of two sides of the brain
Localisation of function Area of the brain responsible for specific behaviour e.g. the left is responsible for language
Limbic system A collection of structures in the mid-brain that processes memory and emotional information
Neurotransmitters Chemicals that send messages across neurons
Hormones Chemicals that are released into the bloodstream
Evolution The process of change through genetic mutations
Lobes Components of the brain (4 in total)
Adaptive advantage Any feature that increases the chance of survival
Environment of evolutionary adaption The conditions that existed during the period of evolutionary change
Created by: samfitter
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