By chance, have you seen or heard of anything related to epigenetics when modifying base pairs?
Epigenetics is a whole new science all by itself. How genes are turned on or off, the last I heard, is a bit of a mystery. How one of two twins gets cancer and the other doesn't. I haven't spent much time studying it, so I couldn't tell you. However, it seems to me that modifying DNA in its various ways doesn't have much to do with epigenetics. Much of our DNA operates whether it's turned-on or not. Or maybe it's just "always on" and things go wrong when it accidentally gets turned-off. For example, our body needs to continuously produce red blood cells in order to live. That particular process seems to be "always on". However, occasionally we lose more blood than usual and maybe that process gets kicked into high gear. Or maybe it doesn't and the body recoups in the slow way. I'm sure that's been studied, but I don't know.
Epigenetics is interesting to me, but there are a lot of other things that are more interesting, and there is only so much time in a day. I've spent more time studying CRISPR-CAS9. Although, to be fair, once I realized that there is a project to identify every protein in the body, I got more interested in that. There are so many databases available to everyone, nowadays.
The Protein Atlas
https://www.proteinatlas.org/
The Human Proteome Map
http://humanproteomemap.org/
HPRD - Human Protein Reference Databasehttps://www.hsls.pitt.edu/obrc/index.php?page=URL1055173331
Places where you can dig up images like this, which is a simple protein. There are thousands upon thousands of these stored in databases that anyone can access.
If you know how to read this little schematic, you can uncover the secrets of human microbiology.
What might surprise you, is that, every protein molecule I've ever heard of actually performs mechanical movements. Every protein is a little robot. It's a machine. We might think that we're human and somehow different from the robots we build, but inside us are trillions of tiny little machines, all doing different things, things that need to be done in order for us to move around, to breathe, to digest, to think, to stay alive.
And every cell in your body has thousands of these tiny little machines, also running around doing things. And there are so many other questions. When do these machines get turned-on? How do they know where to go and what to do? Almost every tiny little machine performs only one function. It's designed to do that, and that only.
Today I'm still trying to get information about how the very first living thing ever came about. This is the holy grail of biology. Right now, we have only theories, but the real complication is to have something that is alive, but can also reproduce itself. Without this function, it can't exist for more than a single iteration of itself.
But over 3.8 billion years, perhaps it took many of those single iterations before one of them found a way to reproduce a part of itself. Somewhere between 4.56 Bya and 3.8 Bya, the first living thing emerged, that could reproduce itself. I believe that part took about 200 million years (the Earth needed sometime to cool down from its formation).
The problem with trying to find information about this is coming across a multiplicity of religious nuts trying to redirect you to "intelligent design" sites, and "miracles of God" and so on, and even worse than this, bringing up made-up probabilities about how impossbly improbable it was for life to form all by itself. I looked at one of them and asked myself, where did they get all of those stupid-assed numbers from? Easy - they made them up.
However, one thing that's very inherent in our DNA, and essential to our survival, is its ability to mutate. Which must be a central part of the answer to this major question.
The religionists fought us all the way on the missing link, until we found it (there wasn't one - just a common ancester). Now they're fighting us on this, especially with their misinformation and disinformation campaigns.
How do you build a molecule that can replicate itself? It has to be able to mutate.
We are so incredibly complex. It bogles the mind.