How do mutations affect an organism? Biology The Role of DNA in Evolution Mutations 1 Answer Dr Birendra Kumar Mishra Jan 5, 2017 By changing the genetic codes. Explanation: In the mutations, the sequences nitrogenous bases of DNAs are changed. The changed sequences of nitrogenous bases finally affect the reading of aminoacids during the proteis synthesis. It will affect he structure proteins and enzymes. Thank you Answer link Related questions Why are somatic mutations irrelevant in evolution? How do mutations affect the traits of an animal? How are mutations important to evolution? What are germ cell mutations? What is a mutation? What are some examples of loss of function mutations? How do point mutations affect the synthesis of proteins? What are missense mutations? What are some examples of deletion mutations? Question #84638 See all questions in Mutations Impact of this question 4337 views around the world You can reuse this answer Creative Commons License