Science already has a good idea of how life started but the correct answer is "I don't know" not your dogmatic retreat of "god did it"
DNA does indeed prove relationships so we can trace our evolution back, the DNA record has conclusively proved evolution - it is only Theists who object because to accept it would challenge the very bedrock their "revealed truth" is based on.
It is probably already to late for an elderly person like you to change a life time's belief wedded to your Bible but it's not too late to teach chilren the truth on who they are and where they came from, even if churches like yours try to fill their heads with nonsensical religious dogma.
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...DNA has been an important discovery for many reasons, a key one being its relationship to evolutionary theory. Evolutionists have been particularly excited with DNA advances because the basis of DNA is such that it can be utilised to document the history of evolution."
Evolution of DNA
And yes we can also conclusively demonstrate we have a relationship with bananas through DNA studies:
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We’ve long known that we’re closely related to chimpanzees and other primates, but did you know that humans also share more than half of our genetic material with chickens, fruit flies, and bananas?
Since the human genome was first sequenced in 2003, the field of comparative genomics has revealed that we share common DNA with many other living organisms — yes, including our favorite yellow peeled fruit. "
How Genetically Related Are We to Bananas? | Get Science
The challenge to your world view by evolution mean you have to dismiss it with an insult or stick your fingers in your proverbial ears shouting "la, la, la"
To you and your church, you know the truth. Scientifically looking for real answers is a waste of time guaranteed to produce "garbage claims" if they don't 100% agree with your beliefs.