You could be referring to something with the telomeres. I think the original cloning method used to clone dolly could run into an issue since they were replicating dna from a somatic cell. I dont think using gametes would run into this issue. Someone correct me if im mistaken.
OGStreetCartoonist t1_j6bkbg0 wrote
Reply to comment by slumette in California zoo clones critically endangered horse using 42-year-old DNA by speckz
You could be referring to something with the telomeres. I think the original cloning method used to clone dolly could run into an issue since they were replicating dna from a somatic cell. I dont think using gametes would run into this issue. Someone correct me if im mistaken.