Identify the structure of the human heart which is a large vein (right and left branches) that carries oxygenated blood from the lungs to the left atrium of the heart. (check out the hint) a) aorta b) coronary vein c) pulmonary vein d) inferior vena cava

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes