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.
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