But not always: a silent mutation is a type of mutation in the coding region of a gene that doesn't actually change the amino acid sequence of the protein that is made. Below, learn how silent mutations work and why they're no big deal for an organism.
Sponsored Topics. Port Arthur is a city in Jefferson County within the BeaumontâPort Arthur Metropolitan Statistical Area of the U.S. state of Texas. The population was 57,755 at the 2000 census. Port Arthur is located on the western bank of Sabine Lake. The Rainbow Bridge across the Neches River connects Port Arthur to Bridge City.
Port Arthur is tied with Lake Charles, Louisiana and Astoria, Oregon, as the most humid city in the contiguous United States. The average relative humidity is 90% in the morning, and 72% in the afternoon.ome to a large portion of United States refining capacity, Port Arthur is now seeing renewed investment in several key installations. Motiva Enterprises is undertaking a major addition to its western Port Arthur refinery, expanding capacity to 600,000 barrels per day (95,000 m 3 /d).