Mutations

What are mutations in evolution?

changes to the DNA nucleotide sequence that can create new alleles

What is a point mutation and what is the result?

a change to a singluar nucleotide or base pair

What is a frameshift mutation?

insertion or deletion of nucleotides that shift the reading frame

What is a Block Mutation?

large sections of DNA are rearranged, duplicated, deleted or moved

How does mutation contribute to evolution?

new allele produces a new phenotype that is acted upon by environmental pressures. individuals with advantageous phenotypes survive and reprodice to increase allele frequency