This is an extra credit question worth 3 points.  If you get it right, I will need to put the points in manually after the exam is done. The bacterial RNA polymerase usually repeatedly synthesizes a short RNA strand and returns to the start point before finally “escaping” the promoter. This is called _______________________.

Transcriptional control in which a repressor protein prevents a gene from being expressed is ___________ control.  

How is the trp repressor different from the lac repressor?  

Current aerobic exercise activity guidelines recommend that bouts of physical activity should be at least the following in length at one time in order for health benefits to be achieved:

The presence of a pyrimidine dimer may cause it to be bypassed during replication, leaving a gap in the new strand that may then be repaired by a recombination-repair system.

The lac operator:

One major difference between bacterial and eukaryotic RNA polymerase is that:

An alternate name for the coding strand of a gene is the _______________ strand.  

Mismatch repair in E. coli is most efficient when the DNA being repaired is:

You receive a patient in the emergency room who has been in a motor vehicle accident.  The patient is complaining of shortness of breath and pain in the upper chest and neck area due to the trauma caused by the seat belt during the accident.  X-ray confirms the presence of a pleural effusion.  What is the name of the specific type of pleural effusion that is most likely occurring?