Why Are Damaged Neurons Usually Not Replaced

question 79

Multiple Choice

Why are damaged neurons usually not replaced?

• A)Neurons are amitotic.
• B)Neurons are supported by neuroglial cells.
• C)Neurons are excitable cells.
• D)Neurons are voluntarily controlled by the brain.

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Definitions:

Transcription

The process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA) by the enzyme RNA polymerase.

Replication

The process of duplicating a molecule of DNA, ensuring that each new cell receives a complete set of genetic instructions.

DNA

Deoxyribonucleic acid, a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms.

Ribose

A five-carbon sugar that is a crucial component of RNA (ribonucleic acid) molecules.