Here are a few of the chemicals in tobacco smoke and other places they are found: Acetone â found in nail polish remover. Acetic Acid â an ingredient in hair dye. Ammonia â a common household cleaner. Arsenic â used in rat poison.
Dimples are especially common in the face, because the muscles pull the skin on the face around, instead of just pulling around bones. The face also has bits of body fat, which cause the dimples to be more visible. Most cheek dimples are the result of a shortened muscle, zygomaticus major, pulling on the skin. There are dimples in the chin and the elbows, as well. At rest, it's not noticeable, but as the muscles around it pull into a smile, its shortness creates divots in the face.
Genetics and Inheritance:Why owning a pair of genes matter. If both of your parents have dimples (small dents in the cheek, which become prominent when you smile), do you think you ll have dimples or not? In general, you are likely, but not guaranteed, to have dimples. This is because having dimples is a dominant trait. Genetics is the study of how certain features are transferred from generation to generation. Not all characteristics are passed through inheritance. For example, if you have black hair but dye your hair green, that doesn t mean your children will have green hair.