An -NH2 group is an AMINO group.......
A universal genetic code allows "the processes of transcription and translation to produce the same proteins in all species."
To say that the genetic code is universal it means that it is read/interpreted in the same exact way in all cells. This is that the same group of three nucleotides, a codon, will always translate into the same amino acid in any cell leading to the formation of the same protein, or at least a protein with same amino acids when first formed.
The answer is C. inbreeding
İnbreeding results in homozygosity, which can increase the risk of the koalas being affected by the genetic disorder.