Acute pancreatitis signs and symptoms include: Upper abdominal pain; Abdominal pain that radiates to your back; Abdominal pain that feels worse after eating; Fever; Rapid pulse; Nausea; Vomiting; Tenderness when touching the abdomen; Chronic pancreatitis signs and symptoms include: Upper abdominal pain; Losing weight without trying; Oily, smelly stools (steatorrhea)
Rating Newest Oldest. Best Answer: Polygenic Inheritance: Human skin color is a good example of polygenic (multiple gene) inheritance. Assume that three dominant capital letter genes (A, B and C) control dark pigmentation because more melanin is produced.
Human skin shows higher variation in color than any other single mammalian species and is the result of natural selection. Skin pigmentation in humans evolved to primarily regulate the amount of ultraviolet radiation (UVR) penetrating the skin, controlling its biochemical effects. The actual skin color of different humans is affected by many substances, although the single most important substance determining human skin color is the pigment melanin. Melanin is produced within the skin in cells called melanocytes and it is the main determinant of the skin color of darker-skinned humans.