A genealogical DNA test looks at a person's genetic code at specific locations. Results give information about genealogy or personal ancestry. Generally, these tests compare the results of an individual to others from the same lineage or to current and historic ethnic groups. The test results are not meant for medical use. They do not determine specific genetic diseases or disorders. They are intended only to give genealogical information. - Wikipedia
Whereas modern genetic science came thus far in reading human body’s genetic codes, it doesn’t solve the genetic codes in the realm of man’s spirit.
Jesus reveals the genetic codes of evil man’s spirit in John 8:44;
“You belong to your father, the devil, and you want to carry out your father's desire. He was a murderer from the beginning, not holding to the truth, for there is no truth in him. When he lies, he speaks his native language, for he is a liar and the father of lies.”
You belong to your father, the devil
This is, like father like son, you have the temper, disposition, or spirit of the devil. You are influenced by him; you imitate him, and ought therefore to be called his children.
He was a murderer from the beginning
This refers to the seduction of Adam and Eve. Death was denounced against sin, Genesis 2:17. The devil deceived our first parents, and they became subject to death, Genesis 3. As he was the cause why death came into the world, he may be said to have been a murderer in that act, or from the beginning. It was by his instigation, also, that Cain killed his brother Abel.
He is a liar and the father of lies
Devil is the great promoter of falsehood of every kind. He is a liar, all his temptations are carried on by his calling evil good, and good evil, and promising freedom in sin. He is the author of all lies; whom liars resemble and obey, with whom all liars shall have their portion forever. The special lusts of the devil are spiritual wickedness, the lusts of the mind, and corrupt reasonings, pride and envy, wrath and malice, enmity to good, and enticing others to evil.