Answer: This is talking about Y-chromosomal Adam,or Y-MRCA,which is the most recent common ancestor from whom all currently living males are descended patrilineally.
Step-by-step explanation:
Most Christians believed that the entire human race actually descended from our literally first parents, Adam and Eve until the advent of Darwinian evolution. This belief has been challenged by modern scientific claims on two front:
1. The belief that true man suddenly appeared in the form of Adam has been replaced with standard theory of human evolution in which progressive changes in early primates evolved the consciouand consciousness intelligence of modern man.
2. The claim that our human species arose from a single pair of first parent has been replaced with evolution taking place in large population whose number never saw a bottleneck or reduced population of just two individuals