Although characteristics vary under the laws of different countries, it can be described as: 1  a privileged claim, 2  upon maritime property, 3  for service to it or damage done by it, 4  accruing from the moment that the claim attaches, 5  travelling with the property unconditionally, 6  enforced by an action in rem.
Visualization: ethidium bromide (EtBr) and dyes The most common dye used to make DNA or RNA bands visible for agarose gel electrophoresis is ethidium bromide, usually abbreviated as EtBr. It fluoresces under UV light when intercalated into DNA (or RNA).
Description. [0001]. The present invention discloses selection marker gene free recombinant filamentous fungal strains, a method for obtaining these strains and the use of these strains. Furthermore, the method of the present invention is used for performing strain improvement.o grow on acetamide as the sole N-source. For microorganisms that lack the possibility or only have a very limited capacity to use acetamide as the sole N-source the acetamidase gene can in principle be used as a selection marker provided that acetamide is taken up by the cells.