The structural genes in an inducible operon (eg., the lactose operon) are                .

An organism is described as being a barophilic chemoheterotroph.  What does this mean?  (3 points, total)

A non-competitive inhibitor would interfere with the enzyme by 

In            , a repair enzyme scans the DNA, and breaks apart pyrimidine dimers.

During the Calvin-Benson cycle, CO2 is converted to glucose.  The key enzyme for this process is           .

Riboswitches are              .

Why is the Ames test considered a better way to screen compounds for mutagenicity than animal testing?  Choose the most correct answer. a.  The Ames test is cheaper. b.  The Ames test is more humane. c.  The Ames test is slower, but more accurate. d.  A and B are correct. e.  B and C are correct. f.  All of these choices are correct. g.  None of these choices is correct.

Chromatin is condensed into heterochromatin and euchromatin.  This allows cells to a.  fit all of the DNA into the nucleus. b.  control gene expression. c.  conserve energy. d.  A and b are correct. e.  B and c are correct.

All herpes virus infections go through periods of no viral activity and no symptoms.  This is called

True / False ALL animal viruses are enveloped