DNA is a genetic material, it has relative stability; it can accurately self replicate, so that parents and offspring to maintain genetic continuity; can guide protein synthesis, control metabolic process and character development; under specific conditions, it can produce genetic variation.
DNA is the main chemical component of chromosomes, also known as genetic genes, sometimes referred to as genetic particles. The function of DNA is mainly the transmission and replication of genetic information.
After birth, the fetus will inherit and copy the father’s and mother’s DNA, which is also the legal basis for paternity testing. Children will inherit their parents’ genes after they are born. Some children look like their parents, and some children’s characters are like their parents. This is the genetic effect of DNA.