Bill Bryson in his best-selling book, “A Short History of Nearly Everything” (published 2010, p. 498), tells us to start with a cell. “Inside the cell is a nucleus and inside each nucleus are the chromosomes–forty-six little bundles of complexity, of which twenty-three come from your mother and twenty-three from your father. […] Chromosomes constitute the complete set of instructions necessary to make and maintain you and are made of long strands of the little wonder chemical called deoxyribonucleic acid or DNA.”
DNA is a molecule that contains the encoded genetic instructions that make up our physical being.
There is an ancient scripture recorded in Matthew 10:30 that says, “But the very hairs [cells?] of your head are all numbered.”
I am quite sure it does not mean we would be saved with every hair or cell we ever had.
We know every single cell in our body with the exception of a very few contain all the information needed to recreate our whole personal physical body. Imagine, just one of our cells is all that is needed to recreate us.
DNA might be considered our symbolic book of life as mentioned in Revelation 20:12, “And I saw the dead, small and great, stand before God; and the books [history?] were opened: and another book [DNA?] was opened, which is the book of life: and the dead were judged out of those things which were written in the books, according to their works.”
Hopefully our book of life is full of good deeds and good intentions besides the genetic code to to accompany our spirit to recreate our physical body as a resurrected everlasting body.
According to Bill Bryson in his book “A Short History of Nearly Everything” p. 498, “With a very few exceptions, every cell in your body–99.999 percent of them, say–carries the same complement of chromosomes. (The exceptions are red blood cells, some immune system cells and egg and sperm cells, which for various organizational reasons don’t carry the full genetic package.)”
Is it possible that the exceptions are not needed for the resurrected everlasting body. We will not need to eat so blood would not be needed to carry waste materials and nutrients. But we may want to eat for pleasure. Perhaps blood would be replaced with another type of fluid of immediate recycled energy particles. We are everlasting so there would be no need for some immune system cells because we would never be ill. We would be an eternal perfect age. There would be no old people so of course there would be no young people and therefore no reproduction so no need for egg and sperm cells.