Question

Sickle-shaped red blood cells result from a mutation in the gene that codes for hemoglobin.

Answer 1

Answer:

Substitution

Explanation:

Substitution is when is a mutation that exchanges one base for another. In this case, the T is an A.  

T-G-A-G-G-T-C-T-C-C-T-C

T-G-A-G-G-T-C-A-C-C-T-C