What Is Nonpermissive Temperature?
The Permissive Temperature Is the Temperature at Which a Temperature-Sensitive Mutant Gene Product Takes on a Normal, Functional Phenotype. .. . in Contrast...
The permissive temperature is the temperature at which a temperature-sensitive mutant gene product takes on a normal, functional phenotype. ... In contrast, the nonpermissive temperature or restrictive temperature is the temperature at which the mutant phenotype is observed.
What is the nonpermissive temperature of temperature sensitive mutant yeast?
Infection of gene 30 ts mutants (e.g., isB20) under the nonpermissive conditions of 42°-44°C results in an accumulation in cells of low MW DNA fragments.
Which is a temperature sensitive?
Temperature-sensitive (Ts) mutants of a gene are ones in which there is a marked drop in the level or activity of the gene product when the gene is expressed above a certain temperature (nonpermissive temperature). Below this temperature, the activity of the mutant is very similar to that of the wild type.
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