Question

The sickle cell trait is caused by one amino acid, which is called glutamic acid, being changed into a different amino acid, valine. There are no other differences between the normal protein (called hemoglobin) and the protein that causes the

sickle cell trait. What kind of mutation caused this change? Explain your answer

Answer 1

A point mutation. If there is only one difference in the two genes then it must be a point mutation as the nuclei acids are different at a specific point without causing them all to change by the deletion or addition of a nucleus acid.