South America-The guinea pig was first domesticated around 2000 BC in the Andes on the western side of South America, in a region which is now covered by Peru and Bolivia. They were originally bred for food, but some may have been kept family pets for children.
Rna primer constructed during dna replication needs to be replaced because rna differs from dna. it contains ( adenine, cytosine, uracil ) instead of ( adenine, guanine, thymine ).