The Fear Response That Enables Us to Respond to Potentially

question 127

Multiple Choice

The fear response that enables us to respond to potentially dangerous stimuli before we are really aware of the danger is under the control of the

• A) hippocampus.
• B) amygdala.
• C) hypothalamus.
• D) thalamus.

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Definitions:

Hereditary Material

Genetic information passed down from parents to offspring, primarily contained within DNA.

Recessive Genes

Genetic variants that are expressed in an organism's phenotype only when two copies of the gene are present, but not when a dominant gene is present.

Histones

Proteins found in eukaryotic cell nuclei that package and order the DNA into structural units called nucleosomes, playing a critical role in gene regulation.

Neuroplasticity

The malleability of the human brain, its capacity to change and grow especially in response to new environmental input. Includes the capacity of neurons to shift functions to compensate for damage to other cells or because they have been transplanted to a different part of the brain.