Question

why is there more than one codon for each amino acid? so small errors will hopefully still code for the same amino acid so a necessary protein is never formed so small errors will never occur, only big errors occur so small errors will always add up to giant errors

Explanation:

The redundancy of codons (more than one codon for each amino - acid) provides a form of genetic error tolerance. Small mutations in the DNA sequence that lead to changes in the codon may still result in the same amino - acid being incorporated into the protein, due to the degeneracy of the genetic code. This helps maintain the integrity of the protein structure and function despite minor genetic errors.

Answer:

so small errors will hopefully still code for the SAME amino acid