One of the Better Methods Used to Obtain Precise Estimates

question 15

Multiple Choice

One of the better methods used to obtain precise estimates of genetic and environmental contributions to individual differences is the twin study, in which monozygotic twins and dizygotic twins of the same sex are compared to each other and to family members for:

• A) differences in blood types only.
• B) similarities in blood type only.
• C) similarities on any given trait.
• D) chromosomal defects.

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Definitions:

Neurotransmitter Levels

The concentration of chemical messengers in the nervous system that transmit signals across synapses from one neuron to another.

Microdialysis

Technique used to determine the chemical constituents of extracellular fluid in freely moving animals.

Cannula

A thin tube inserted into the body to deliver or remove fluid, often used in medical procedures.

Extracellular Fluid

Extracellular fluid refers to the body fluid outside the cells, which includes interstitial fluid, blood plasma, and cerebrospinal fluid, serving as a medium for cellular exchange.