Most Eukaryotic Genes Are Encoded in a Set of Exons

question 10

True/False

Most eukaryotic genes are encoded in a set of exons that are brought together to form a contiguous protein coding sequence by the process of mRNA splicing. In contrast, immunoglobulin genes use somatic recombination of gene segments and not mRNA splicing to generate the final mRNA that is translated into protein.

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Definitions:

Depolarization

A reduction in the difference in electrical charge across a cell's plasma membrane, which is a crucial step in the conduction of impulses along nerve cells.

Voltage-Gated

Ion channels that open or close in response to changes in membrane potential, playing key roles in the transmission of neural impulses.

Myelin Sheaths

Protective coverings around nerve fibers made of myelin, which increase the speed at which impulses propagate along the myelinated fiber.

PNS

Peripheral Nervous System, which consists of the nerves and ganglia outside of the brain and spinal cord.