Respuesta :
All cells must have DNA because DNA also has genes or alleles that are passed on to offspring.
Answer: DNA
Explanation:
According to the cell theory the all the cells carry out functions which is required for life.
This means that the cell must contain DNA. DNA is responsible for carrying the genetic information from one generation to another generation.
The genetic information provides the information for the protein synthesis. So, it is very important for the living beings and is found in every cell of the organism.