What is the role of mutation in evolution?
What is the role of mutation in evolution? Mutation plays an important role in evolution. The ultimate source of all genetic variation is mutation. Mutation is important as the first step of evolution because it creates a new DNA sequence for a particular gene, creating a new allele.
What are the 4 types of mutation?
Germline mutations occur in gametes. Somatic mutations occur in other body cells. Chromosomal alterations are mutations that change chromosome structure. Point mutations change a single nucleotide.
What is the role of mutation in natural selection?
Mutations are the source of new variation. Natural selection itself does not create new traits; it only changes the proportion of variation that is already present in the population. The repeated two-step interaction of these processes is what leads to the evolution of novel adaptive features.
How do gene mutations contribute to evolution quizlet?
How does mutation contribute to evolutionary change? The presence of a new allele in the individual creates a change in their DNA. The new allele(s) may be passed down to the offspring if it is heritable.
