Why Is Ribosomal RNA Especially Useful for the Study of Phylogenetic

question 61

Multiple Choice

Why is ribosomal RNA especially useful for the study of phylogenetic relationships?

• A) It is only found in some species, helping to distinguish them from others.
• B) It is highly conserved.
• C) It is highly variable.
• D) It is extremely short.

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Definitions:

Multipolar Neuron

One of three categories of neurons consisting of a neuron cell body, an axon, and two or more dendrites.

Dendrite

The branched projections of a neuron that act to propagate the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron.

Nucleus Of Neuron

The central part of a neuron containing the cell's genetic material and involved in regulating the cell's metabolism and protein synthesis.

Cell Body

The part of a neuron that contains the nucleus and most of the cell's organelles; it plays a critical role in processing and transmitting neural information.