Polar Amino Acids An amino acid is polar when the R group is an alcohol, thiol, or amide. 11. Acidic Amino Acids An amino acid is acidic when the R group is a carboxylic acid. 12. Basic Amino Acids An amino acid is basic when the R group is an amine.
Friedensburg is a census-designated place (CDP) in Schuylkill County, Pennsylvania, United States. The population was 828 at the 2000 census.
While digging for other remains in the city of Regensburg, archaeologists also found a handful of blacked rolls and other pretzel bits that suggests they were tossed from a bakery that was once located there, reports the Guardian. Carbon dating suggests the toasty treats were baked sometime between 1700 and 1800.