the cftr protein is made up of 1,480 amino acids linked together in a chain. some humans produce a version of the cftr protein in which phenylalanine (an amino acid) has been deleted from position 508 of the amino acid chain. which of the following best predicts how the amino acid deletion will affect the structure of the cftr protein? responses it will have no observable effect on the structure of the cftr protein. it will have no observable effect on the structure of the c f t r protein. it will affect the primary structure of the cftr protein, but the other levels of protein structure will not be affected. it will affect the primary structure of the c f t r protein, but the other levels of protein structure will not be affected. it will affect the secondary and tertiary structures of the cftr protein, but the primary structure will not be affected. it will affect the secondary and tertiary structures of the c f t r protein, but the primary structure will not be affected. it will affect the primary, secondary, and tertiary structures of the cftr protein.