Write an R program that makes a dotplot of two DNA sequences S1= ATGCTA and S2= ATTCTA by plotting a dot at every position where the two sequences share an identical letter. Use the function makeDotPlot1() to make a dotplot between sequences setting the argument dotsize to 0.1 (this determines the radius of each dot plotted). Do you find the same regions and if not, can you explain why?

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