Mutations can be categorized based on the kind of effect they have on an organism. blue eyes in humans are a result of a mutation in the oca2 gene, which controls the production of the pigment melanin in the iris. this mutation is an example of a (beneficial, harmful, neutral) mutation. such mutations have (a positive, a negative, no) effect on an organism’s survival.

The First Blank Is Neutral. And the Second Blank is No.

When  you have a certain eye color it is a mutation period and the color of your iris wouldn't have an affect the way you See or wont make your any more superior to anyone else. It is simply a matter of heredity.

answer; ///(b) it is composed of four protein chains and four heme groups;

sorry, but you do not have posted the diagram.