Answer:
Creating Mutant phenotype,both allele for that quality ought to be change (with respect to prevailing phenotype ,regardless of whether one duplicate is normal,phenotype will be normal).If that quality can't play out its capacity ,at that point it's lack will be found in freak phenotype, and we look at wild kind one and freak , capacity of that quality can be known, as this capacity will discover in ordinary wild sort one and missing in freak phenotype. Steps-take to cloning vector, one contain ordinary wild sort quality and second contain mutant gene. Addition them independently in various host cell and see the outcome.