Questions and Answers
What does the biological approach view humans as?
What is a gene?
A part of the chromosome that carries information in the form of DNA.
What does genotype refer to?
The genetic makeup of an individual.
Define phenotype.
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What is natural selection?
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What does evolution refer to?
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What is the function of the nervous system?
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What is the brain composed of?
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What are neurotransmitters?
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What are hormones?
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What do twin studies determine?
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What are MZ twins?
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What are DZ twins?
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What is the concordance rate?
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Study Notes
Biological Approach
- Views humans as biological organisms, providing biological explanations for psychological functioning and behavior.
Gene
- A DNA segment located on chromosomes that carries genetic information, inherited from parents to offspring.
Genotype
- Represents the genetic constitution of an individual, consisting of the genes received from both parents.
Phenotype
- Refers to the observable traits of an individual, resulting from the interplay between genetics and environmental factors.
Natural Selection
- A mechanism by which advantageous inherited traits enhance reproductive success, leading to those traits becoming prevalent in the population over generations.
Evolution
- The process through which inherited traits change over time due to natural selection, impacting species over long periods.
Nervous System
- A complex network that transmits messages throughout the body using nerve cells and electrical impulses.
The Brain
- Composed of clusters of neurons that collaborate to process sensory input and generate responses.
Neurotransmitters
- Biochemical substances released at synapses to facilitate the transmission of electrical signals between neurons.
Hormones
- Chemical messengers produced by the endocrine system that regulate various biological processes and states in the body.
Twin Studies
- Research studies that assess the genetic influence on traits by comparing the similarities between monozygotic (MZ) and dizygotic (DZ) twins.
MZ Twins
- Identical twins formed from a single zygote that divides into two embryos, sharing the same genetic material.
DZ Twins
- Fraternal twins who develop from two separate eggs fertilized by two different sperm, possessing different genetic makeup like regular siblings.
Concordance Rate
- Reflects the proportion of twins that share a specific trait, providing insights into the genetic contribution to that trait.
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Description
Explore key concepts in Biological Psychology through this quiz. Topics include the biological basis of behavior, genetics, and the nervous system. Enhance your understanding of how biology shapes psychological functioning.