You have analyzed a large set of human cancer-critical genes for a selected group ofcarcinomas, classifying each of the genes based on whether they are known to undergo somatic orgerm-line mutations, as well as based on whether they are dominant or recessive. You then groupthem and plot the statistics in the following histograms. Which group (a or b) do you thinkrepresents somatic, as compared to germ-line, mutations? Which group (1 or 2) do you thinkrepresents dominant, as compared to recessive, mutations? (Note that the sum of percentages ofsomatic and germ-line mutations is more than 100%, since some genes are mutated in bothsomatic and germ cells).