Pain that occurs with a fever, nausea, and vomiting or loss of appetite may be a sign of inflammation or infection of the gallbladder (acute cholecystitis). Symptoms that may mean that a gallstone is blocking the common bile duct include: 1  Yellowing of the skin and the white part of the eyes (jaundice).  Dark urine.
Mendel concluded that biological inheritance is determined by factors that are passed from one generation to the next. Mendel also concluded that the principle of dominance states that some alleles are dominant and others are recessive.
One way genetic factors determine a person's level of health is by being responsible for the disease state. Such diseases can be inherited. Whether they are or not depends whi â¦ ch of each of the pairs of parents' chromosomes are passed onto offspring. If genes are inherited that directly cause disease, the individuals level of health is lower than that of healthy individuals (who do not possess the offending gene).