There is no such thing as “chinese” or “mongolian” dna! There may be genetic markers unique to chinese and mongolians but not DNA! If you and a modern chinese or Mongolian had a common ancestor who lived in Northern Eurasia before the NaDene people moved to America then you may share genetic markers? Ignore the 1421 site and read some genetics books! If there are no decently stocked branch libraries near you ask if the librarian can get some books in from a central depot or complain to the Tribal Council that the library needs more funding for science books! Please go and do some reading and stop asking the same question over and over again? People are beginning to think you have some kind of OCD fixation?