1 Junior-Used by his father, even in Indy's adulthood. 2  After discovering that he had a son in 1957, Indiana Jones jokingly referred to Henry Jones III as Junior. 3  Indiana-Taken from the name of his childhood dog, Indiana, often shortened to Indy.
second-site mutation. see suppressor mutation. silent mutation. one in which there is a base change but because of the redundancy of the genetic code the same amino acid is coded, or one in which there is an amino acid substitution in the protein which has no detectable effect on the phenotype.
The trp operon would be expressed at maximum levels in the absence of tryptophan, since the trp repressor would be unbound and the mutant leader region would allow full expression. b) A lacI-lacZ fusion gene has been identified that produces a chimeric protein with both repressor and Ã-gal function.