Which two of the organisms shown below are most closely related? A) borago officnalis and Primula officnals
B) mentha piperita and mentha spicata
C) primula officnals and foeniculum officnals
D) scabiosa columbaraia and Borago Officinalis

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.