A polypeptide has the following amino acid sequence: Met Ser Pro Arg Leu Glu Gly For each of the following mutations, indicate the most likely type of change that occurred in the DNA (single base substitution, insertion, deletion) and the phenotypic effect of the mutation (nonsense mutation, missense mutation, frameshift mutation, etc) and whether it is a transition or transversion. Refer to a. Mutant 1: Met Ser Ser Arg Leu Glu Gly b. Mutant 2: Met Ser Pro c. Mutant 3: Met Ser Pro Asp Trp Arg Asp Lys