How could a mutation or change in a DNA sequence impact the overall function of a cell?

Me how do you name a compound with more than two elements?

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

What amino acid is coded for by this sequence after the mutation