If the two double-mutant recombinants in a tetratype ascus cannot be distinguished. phenotypically from the four single-mutant parental types, progeny-tests or complementation-tests may be. required. The reverse situation may arise, where it is desired to recover a single-mutant component from a double. mutant strain.
For places named New Market, see New Market (disambiguation). Newmarket is a market town in the English county of Suffolk, approximately 65 miles (105 kilometres) north of London. It is generally considered the birthplace and global centre of thoroughbred horse racing and a potential World Heritage Site.
Roscommon County is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 24,449. The county seat is Roscommon. The county was founded in 1840 and organized in 1875. Both the county and county seat are commonly referred to by locals as Rosco. Roscommon is home to the Firemen's Memorial Festival which began is 1979 in honor of the fallen heroes. It is held on the third weekend in September, Thursday through Sunday.