In your research, you label two proteins (P1 and P2), with fluorescent dyes and watch as they move the length of a cultured neuron toward the axon terminal. P1 moves very quickly relative to P2. You might conclude that

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Quizplus · Accepted Answer

P1's rapid movement toward the axon terminal suggests it is likely associated with transport vesicles, which are known to facilitate fast transport of proteins and other molecules along neurons.

In Your Research, You Label Two Proteins (P1 and P2)