With decrease in resistance in blood vessels, there will be an increase in blood flow. Which of the following will cause decreased resistance? Low blood viscosity decreases resistance in blood flow.
High blood viscosity decreases resistance in blood flow.
Low pH in the blood will decrease resistance in blood flow.
Changes in red blood cell shape will decrease resistance in blood flow.

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.