Question 6 on page 38. Let's restrict our attention to levels 1 and 2 to begin and introduce a new piece of information. Finally, you are being asked for computation time, whereas your expression gives the number of level-1 instructions. But i instructions take k seconds. Question 10 on page 114.
Genes are of different sizes.
You are probably wondering what bits have to do with nucleotides. Now you should be able to answer Tanenbaum's questions. Question 9 on page 114. This is information theory again. Each of these receptors is responsive to three primary colors, each of an intensity ranging from 0 to 63 inclusive.