That would be genetic engineering. This study involves the use of DNA and genes.
D. The Arctic fox color changes as he moves through the environment
Explanation:
A mutation may change a trait in a way that may even be helpful, such as enabling an organism to better adapt to its environment. The simplest mutation is a point mutation. This occurs when one nucleotide base is substituted for another in a DNA sequence. The change can cause the wrong amino acid to be produced.