It would be completely false to say that both internal and external environments can modify or alter a gene. The correct option among the two options that are given in the question is the second option or the last option. I hope that this answer has come to your great help.
The correct answer would be TRUE. Both the internal and external environments can modify or alter a gene. Epigenetics is the study of the changes in organisms caused by the modification of gene expression. According to epigenetics, environmental conditions can indirectly affect our DNA. An example would be an exposure to a chemical agent or toxin, that may enter the cells of the tissue and interface directly with the genetic material. In addition, stress can also affect the modification of the genes.
A double diet is where an organism gets nutrition from plants/meat and the sunlight. An advantage is that they can stay energised for a long time without having to eat by just staying in direct sunlight.
