This method is used to measure the amount of DNA that is present in a sample. RT â PCR (Reverse Transcriptase PCR). This method uses PCR to amplify RNA. RNA is a single stranded nucleic acid molecule and needs to be made into DNA before it can be amplified.
Willow City is an unincorporated community in Gillespie County, Texas, United States. According to the Handbook of Texas, the community had an estimated population of 75 in 2000. The school was added to the National Register of Historic Places in Texas on May 6, 2005.
Willow City received telephone service in 1893. In 1904 the population was estimated at 132, and by 1915 Willow City had three general stores, a drugstore, two blacksmiths, and a cotton gin. The population declined during the first half of the twentieth century, to 100 in 1925 and to forty in 1939.