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Questions and Answers
What theory states that animals better adapted to their environment are more likely to survive and reproduce?
What theory states that animals better adapted to their environment are more likely to survive and reproduce?
- Evolution by natural selection (correct)
- Genetic mutation
- Biological determinism
- Survivalism
Which field of study focuses on how genes and environmental influences shape individual differences in traits in the present?
Which field of study focuses on how genes and environmental influences shape individual differences in traits in the present?
- Social psychology
- Behavioral genetics (correct)
- Developmental psychology
- Evolutionary psychology
In the context of genetics, what do 'phenotype' and 'genotype' refer to respectively?
In the context of genetics, what do 'phenotype' and 'genotype' refer to respectively?
- Genotype; genotype
- Genotype; phenotype (correct)
- Phenotype; genotype
- Phenotype; phenotype
How do we describe the situation where a single gene can have multiple variations or alleles?
How do we describe the situation where a single gene can have multiple variations or alleles?
According to the gene-environment interaction theory mentioned, what role do genes play in determining characteristics like height?
According to the gene-environment interaction theory mentioned, what role do genes play in determining characteristics like height?
In the context of the text, what conclusion can be drawn from the twin study results regarding schizophrenia risk?
In the context of the text, what conclusion can be drawn from the twin study results regarding schizophrenia risk?
In the nervous system, which of the following is NOT a function of glial cells?
In the nervous system, which of the following is NOT a function of glial cells?
What fatty, insulating tissue formed by glial cells speeds up electrical signals along the axon in neural communication?
What fatty, insulating tissue formed by glial cells speeds up electrical signals along the axon in neural communication?
Which part of the neuron receives signals from other neurons?
Which part of the neuron receives signals from other neurons?
What part of the neuron integrates incoming signals before they are transmitted down the axon?
What part of the neuron integrates incoming signals before they are transmitted down the axon?
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Study Notes
Evolution and Adaptation
- The theory of natural selection states that animals better adapted to their environment are more likely to survive and reproduce.
Behavioral Genetics
- The field of study that focuses on how genes and environmental influences shape individual differences in traits in the present is behavioral genetics.
Genetics Terminology
- Phenotype refers to the physical and behavioral characteristics of an organism.
- Genotype refers to the genetic makeup of an organism.
Alleles
- A single gene can have multiple variations or alleles.
Gene-Environment Interaction
- According to the gene-environment interaction theory, genes play a role in determining characteristics like height, but do not solely determine them.
Twin Study and Schizophrenia
- The twin study results suggest that there is a genetic component to schizophrenia risk, as identical twins are more likely to both develop the condition than fraternal twins.
Nervous System Functions
- Glial cells do not transmit signals in the nervous system.
Glial Cell Functions
- Myelin, a fatty, insulating tissue formed by glial cells, speeds up electrical signals along the axon in neural communication.
Neuron Structure
- The dendrites receive signals from other neurons.
- The cell body integrates incoming signals before they are transmitted down the axon.
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