Hypokinetic movements include: 1  Bradykinesia. 2  Freezing. 3  Rigidity. 4  Postural instability.
1 Missense-the change in nucleotide leads for a different amino acid. 2  This may have little effect, or it may greatly change the resulting protein. 3  Silent-this type of point mutation is the least harmful as there is no noticeable effect on the protein.
Of all the ways the genome can be changed, the simplest type of mutation is the point mutation. In a point mutation, a single base is substituted for another, changing the meaning of a single codon, leaving the rest of the gene unchanged. Geneticists recognize four types of point mutations, based on the effect on the genome.