If the answer is "no", here are 3 options to find out: 1) contact your physician or a hospital you have been treated in. It may be on file. 2) donate blood. They will tell you. 3) Google "blood type testing kit" and order one. Just because a doctor doesn't tell you your blood type, doesn't mean he doesn't have it. If your blood type was ever tested for medical reasons, it will likely remain accessible. If your doctor doesn't want to tell you your blood typ…
Epigenetics is the study of how your behaviors and environment can cause changes that affect the way your genes work. Unlike genetic changes, epigenetic changes are reversible and do not change your DNA sequence, but they can change how your body reads a DNA sequence.
You have a predisposition for developing fingerprints.Identical twins don't have the same fingerprints.https://www.datebytype.com/blogs/view/120/Why-are-epigenetics-important-to-rh-negatives