The amino acids in the original partial sequence (N-term-...V-G-E-N-E-S...-C-term) have little to no impact on protein structure and function, with the exception of serine. Phosphorylation of the serine residue is required for normal function of the protein. Given this information, which reversion mutation(s) in the gene would restore the normal function of the entire protein

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell