Gene therapy is a method of introducing nucleic acids (DNA or RNA) into the cells of an organism to correct an abnormality, such as a mutation, causing a pathology.
It is often a question of bringing a normal and functional gene (transgene) into a cell where the present gene is altered.
Another method can bring RNA capable of partially regulating or blocking the expression of an altered gene.
It takes an extremely high temperature for nuclear "fusion" to occur inside the sun, since this is the dominant source of energy as opposed to nuclear fission, which also takes place but at much smaller levels.
