g After it is phosphorylated, SRSF1, a splicing factor, binds to an exon splicing enhancer in the VEGF mRNA and promotes splicing at exon 8a rather than 8b. How might VEGF splicing be affected if the cell is expressing a mutant SRSF1 in which the amino acids normally phosphorylated are changed to glutamate, and is not expressing the wild type form of SRSF1

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.