The gradual change in a population over time, so that the frequency of favorable traits increases, is called what?
a) mutation
b) evolution
c) extinction
d) speciation

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:

thinking it would be physical characteristics