Genetic information is stored in DNA and can be carried from one generation to the next via both DNA and RNA. Both DNA and RNA are long protein-based polymers that are comprised of nucleic acids. They carry genetic information from parental cells to daughter cells within the human body.
DNA and RNA are macromolecules that consist of many interconnected nucleic acids. Each nucleic acid is composed of a sugar, a base and a phosphate. Sugars link together by phosphates to create the backbone of the DNA or RNA molecule. Genetic information is carried and stored in the sequence of nucleic acid bases along a chain of DNA or RNA. When cells duplicate inside of the human body, DNA is replicated through RNA in order to give the new cell a new set of DNA. When a woman conceives, the egg and sperm cells that create the fetus carry genetic information from the parents. A baby has half of its genetic material from its mother and half from its father. As the fetus grows, DNA is duplicated inside of the baby to allow the baby to grow bigger and to develop. RNA is also duplicated in order to promote protein expression and gene expression in the child. When the child grows up and has her own child, the flow of genetic material continues.