DNA-tests doesn’t accept in Israel, only papers

"If you have no documents proving your Jewish background, we have no way to assist your case. Please note that DNA tests are not valid proofs of Jewishness for Aliyah purposes."

It's in the DNA those lost tribes of Israel exist but those BOOKS-worshipper only want to see it in a book.

My parents have past away for long time ago so I can't asked them about any papers.