Explain, and draw a diagram to show, how acetylation or phosphorylation could change the binding affinity between DNA and histones.
Answer to relevant QuestionsWould you expect to find adenine–guanine or cytosine–thymine base pairs in DNA? Why? Give the name of the base, the ribonucleoside or deoxyri-bonucleoside, and the ribonucleoside triphosphate for A, G, C, T, and U. (a) Is it biologically advantageous that DNA is stable? Why or why not? (b) Is it biologically advantageous that RNA is unstable? Why or why not? How did Messelson and Weigle demonstrate recombination? What role does an operon play in the synthesis of enzymes in prokaryotes?
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