How could a addation or deletion of a base (a, t,c, g) in a sequence of dna effect protein production

Which experiment would most likely contain experimental bias

What types of energy transfers and energy transportations are involved in the domino chain reaction?

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.