this is my first time here, so go easy on me! I've been trying to find out more about the actual process of DNA replication. Specifically, I am wondering if, when the DNA replicates during cellular division, the result is the original DNA strand and a copy? Or is the original strand destroyed in the process and there are 2 child copies that are identical (aside from mutations) to the original?
I am pretty confident in the end-result, but maybe whoever answers can verify this for me too. My understanding is that the original cell itself is destroyed in the end, but the daughter cells are constructed from the substance of the parent's cell. The initial question will help clarify this process for me too, because I am curious if one of the two daughter cells has the literal DNA from the original, or if basically the entire original cell "dies" in the process and the two new cells are completely new.
Update (to demonstrate research effort):
I have learned how a helicase enzyme untwists the DNA and severs the hydrogen bonds between the nucleotide bases, then single-strand binding proteins bind DNA polymerase to the ends of the strand and begin molding, creating a complimentary strand for each side. It seems evident that half of the "original" is found in each daughter, and the DNA polymerase forms the other half. So, the original is still present, but not in its original form, which is why I'm not sure what the "official" diagnosis is. Is it a parent-child, or two children?