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.
Behavioral genetics is a branch of science that tries to find out what role inherited factors play in how people act and what kinds of genes may lead to different patterns of behavior.Today, however, [ most scientists agree that both genes and environmental factors are important in forming behavior.ehavioral genetics is a branch of science that tries to find out what role inherited factors play in how people act and what kinds of genes may lead to different patterns of behavior.