Question

Some scientists claim that the gene that controls the production of h e m o g l o b I n, is located at the position shown in the diagram.

What is the best evidence for this claim?

A) Humans without this gene exhibit problem with oxygen binding in their red blood cells.

B) Other organisms that require oxygen have similar genes in similar locations.

C) Nearby genes on the chromosome are thought to control other blood factors.

D) Healthy humans all have this same gene in exactly the same location

Answer 1

A.

Explanation:

Hemoglobin's function is to bind and transport oxygen from the capillaries in the lungs to the rest of the body; therefore, if this gene is removed, the role hemoglobin plays in our body is also affected.