how do dna cells inside of our bodies form and work

Question: how do dna cells inside of our bodies form and work
- Keywords:
  body,
  cell,
  DNA,
  function
Asked by reft532gybe96 on 23 Feb 2026.
- Michael Gillin answered on 23 Feb 2026:
  
  Brilliant question! DNA isn’t a cell (it’s what’s called a molecule); it is like a tiny instruction book inside each of your body’s cells. Every part of your body is made of cells, and nearly every cell has the same DNA inside it.
  
  DNA tells your cells what job to do. For example, it tells some cells to become skin cells, some to become muscle cells, and some to become brain cells. It also gives instructions for making proteins, which are like tiny machines that help your body grow, heal, and stay healthy.
  
  The DNA itself was made from your biological parents, who each contributed half of your DNA to form one cell. That one cell divided into two, which then divided into four, which then divided into eight, and so on. Every time your cells divide, that DNA is replicated identically until you are formed!

Question: how do dna cells inside of our bodies form and work