Thename of the aminoacyl-tRNA is usually abbre-viated to fMet-tRNA f .The initiator tRNA gains its modified aminoacid in a two-stage reaction. First, it is chargedwith the amino acid to generate Met-tRNA f ;and then the formylation reaction shown in FIGURE 8.12 blocks the free NH 2 group.
Here's how this might work with multiplication facts. You can make a multiplication table. Since 1 times any number is just that number, we can leave the 1's off. Multiplying a number on the left by a number on the top gives you the number (product) where the row (across) meets the column (down).
By the fundamental theorem of arithmetic, every positive integer has a unique prime factorization. (By convention 1 is the empty product.) If the integer is prime then it can be recognized as such in polynomial time. If composite however, the theorem gives no insight into how to obtain the factors.