once biologists understood that genes were located on chromosomes, they were able to explain mendel’s laws of inheritance in terms of the behavior of chromosomes during meiosis. reviewing the following terms will help you understand the figure relating mendel’s laws to meiosis.

4. multiple crosses were made between true-breeding lines of black and yellow labrador retrievers. all the f1 progeny were black. when these progeny were intercrossed, they produced an f2 consisting of 91 black, 39 yellow and 30 chocolate. a. propose an explanation for the inheritance of coat color in labradors. b. propose a biochemical pathway for coat color determination and indicate how the relevant genes control coat coloration.