Some bacteria are capable of removing nitrogen gas from the atmosphere and converting it to nitrogenous compounds.  This conversion of atmospheric nitrogen to ammonia or other nitrogenous compounds is called ___________________________.

The bacterium Streptococcus pneumoniae is the organism responsible for bacterial pneumonia. It has a cell-wall that is predominately made of peptidoglycan and no outer membrane. Based upon these characteristics, this bacterium is __________________. It has the ability to take up DNA from its environment; this ability is known as __________________.

Which of the following are characteristics found in the Bacteria that are NOT found in the Archaea?  Select all that apply.  

 A polar covalent bond results from _________________________________.

How many water molecules are needed to completely hydrolyze (break down via hydrolysis) a polymer that is 423 monomers in length?

You are looking at a collection of cells from a newly discovered diploid organism.  You determine that a cell in the G1 phase contains 22 picograms of DNA.  You find another cell that has 44 picograms of DNA.  What can you definitively conclude about the cell with 44 picograms of DNA?

Which of the following statements best describes the conditions on early Earth and its impact on the evolution of life.

Which of the following best illustrates the process of natural selection?

If a cell in metaphase has 32 centromeres, how many chromosomes are there in each daughter cell following cytokinesis?

A rare illness in a child was determined to be the result of the production of antibodies to signal recognition particles (SRP) in her muscle cells.  These antibodies destroyed her SRPs before they were able to carry out their function.  Based on this information, which of the following is most likely to occur?