The United Nations has warned of a possible resurgence of a deadly bird flu virus, H5N1, and the spread in Asia of a new mutant strain.
Synchronous culture the original strain and the mutant strain respectively in industrial medium and laboratory medium.
Ultraviolet radiation mutagenesis of Saccharomyces cerevisiae and properties of mutant strains
Production of β-glucosidase by the space mutant strain Aspergillus niger ZM-8 on solid fermentation
The selected Aspergillus mutant strain, A28-8, was an excellent keratinase-producing strain.
Under the instruction of metabolic control theory, the screening of leucine auxotroph was determined as the method of selecting the mutant strain of low-yield fusel oil.
a mutant strain of a virus
A mutant strain of bacteria.
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