When Differences in the Phenotype Due to the Environment Can

question 45

Multiple Choice

When differences in the phenotype due to the environment can be ignored:

• A)the environmental component of a complex trait can be more easily identified.
• B)the genetic variation underlying phenotypic differences can be more easily identified.
• C)the trait is not considered a complex trait.
• D)epistatic interactions determine phenotypes.
• E)All of these choices are correct.

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Definitions:

Axon

An elongated, thin extension of a neuron, also known as a nerve cell, which usually transmits electrical signals from the cell body of the neuron.

Synaptic Transmission

The process by which neurons communicate with each other by releasing neurotransmitters across a synapse to transmit signals to target cells.

Neurotransmitters

Chemicals in the brain that transmit signals across a synapse from one neuron to another.

Reuptake

A process in which neurotransmitters are absorbed back into the neuron after being released, affecting the communication between neurons.