What ensures that the correct amino acid is added during translation?

thanks to the genetic code, this allows cells to decode an mRNA in an amino acid chain

Transfer RNAs, or tRNAs, connect the mRNA codons with the amino acids for which they encode. One end of each tRNA has a three nucleotide sequence called anticodon, which can be attached to a specific codon of the messenger RNA. The other end of tRNA carries the amino acid that specifies the codon that is present in the messenger RNA

preservation because he preserves part of the land and preserves means save

explanation:

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.