Problem: Complete the following statements to describe polygenic inheritance. Some traits, such as skin color, are controlled by several sets of (Click to select) . The expressed characteristics are additive, resulting in a continuum of (Click to select) . This is called (Click to select) . Some traits, such as onset of some cancers in humans, are controlled not only by polygenes, but by environmental factors as well. These traits are called (Click to select) . When a single gene has more than one effect, it is called (Click to select) . This can often lead to syndromes, such as (Click to select) , a disorder that results in a deficiency in (Click to select) . This disease can cause (Click to select) , photosensitivity, paralysis, and dark urine. Need Assignment Help?