First of, there's no way to see DNA strand. The model you see is merely a model.
Then in order to discover the sequence even with PCR, you need a primer. In order to make a primer you need to discover dna. Catch 22. So far it's all a fantasy, unicorn, not even hypothesis.
What your body really remembers and passes on to future generations are biochemical metabolic and enzymatic patterns, that are fully dependent on behavioural patterns.
The reason you are being fed these eugenics/genetics, is because they want you to be vulnerable in the belief that you are inevitably coded by your inherited genetics. Health-wise, wealth-wise, and socially.
If people would find that they can influence their bodies and lifes via changing own behavioural patterns, they would be free and invincible. And who would want that? They want ignorant slaves.
I know, because I helped to change many lives and bodies through the consultations