Like the difference between a silicon microchip and just a silicon block. Same stuff, bit the microchip one has intricate patterns.
https://asunow.asu.edu/20200806-dragon-dna-sequencing-genome...
https://phys.org/news/2020-08-dinosaur-relative-genome-linke...
I really recommend Anton's segment on the Tuatara, https://www.youtube.com/watch?v=PWywZyzmBDE MindBlown!
Those blocks are very small, less than 20 Atoms.
https://en.m.wikipedia.org/wiki/Adenine
They’re working on using it for storage. (very slow read write times). Duplicating shouldn’t be a problem.
More realistically, the simplest atom- one proton, one electron- has 3 integer numbers associated with the state of the electron. You need more than a bit to describe the state of that system, so yeah.
My point was that there is only so much information capacity in the cell if you exclude DNA, surely much less than needed to store electrical fields patterns for a whole embryo.