Dr. alvarez studies how the degeneration of certain components of nerve cells in the brain might contribute to the development of multiple sclerosis. dr. alvarez's work best exemplifies the subfield of psychology.

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation:

i have to report this, it doesn't relate to biology