PSYC 107 Lecture 7: The Nervous System
16 Feb 2017
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Document Summary
Dna large molecule that contains genes. Genes small segments of dna that contain information for producing proteins. Alleles different forms of a gene. Dominant alleles alleles that show their effect even if there is only one for that trait in the pair. Recessive alleles alleles that show their effects only when both alleles are the same. Behavioral genetics scientific study of the role of heredity in behavior. Relationship between specific genes and behavior is complex. Most specific behaviors derive from dozens/hundreds of genes. Studying twins and adoptees, behavioral genetics may disentangle the contributions of heredity and environment that influence behavior. Environment influences how and when genes affect behavior. Central nervous system part of the nervous system that comprises the brain and spinal cord. Sympathetic nervous system branch of the autonomic nervous system that activates bodily systems in times of emergencies.
