There are 100 points total. Explain your answer. The genetic code table is contained in the last page of the exam. You can tear the codon page out if you want since you don't need to hand it in. You isolate a new mutation in lac that is uninducible.
Genetic tests indicate that the mutation functions in cis.
Propose an alternate molecular explanation for this mutation. If false, state why. In an alpha helix, the amino acid R groups form hydrogen bonds in the central axis of the helix. In the Monro reaction, the P site, where the charged tRNA normally enters, is replaced by an oligonucleotide that is attached to an amino acid that has been radioactively labeled. Overwinding DNA can induce negative supercoils.