Answer:
Actually our genetic code is unrepeatable, the union of the female x chromosomes of our mother and chromosomes and of our father, generate a diploid cell with a UNIQUE cellular genetic code.
What shows our descent from the same ancestor is mitochondrial DNA, this DNA is the same and is repeated throughout the human race.
Step-by-step explanation:
Mitochondrial DNA is circular and is found in our organelle called mitochondria, responsible for cellular respiration and formation of the energy currency ATP-