You are now told that DNA is organized into a series of 3 symbol triplets called codons . In fact, only 21 unique meanings are given to the 64 possible codes. With this new knowledge, give a revised approximate upper bound on the number of bits of information in the human genetic code. Using this and all the information above, give a final revised approximate upper bound on the number of bits of information in the human genetic code. In two's-complement notation, subtraction is accomplished by negating the subtrahend and adding it to the minuend.
Negation is accomplished by complementing each bit and adding one to the result.
Suppose the following encoding technique was used. This check-summing scheme was devised to detect the most common error in reading off a sting of digits, the reversal of two digits. Verify that it detects errors in the following permutations of an ISBN number. The following is a legitimate ISBN number.