Once they understood the structure of DNA a lot of things became more clear including how DNA was replicated.
So I think your answer is copies? meaning how it is copied (replicated).
The structure also led later on to how it was transcribed into mRNA (and eventually into proteins by ribosomes).
The microorganisms present on day 5 were "<span>(4) offspring with no resistance to the antibiotic" since antibiotics would have eliminated an unfit contenders. </span>
The highest probability is <span>because the piece of DNA that needs to be expressed in the heart cells doesn't work properly. I hope this works good for you</span>