During the tube gel electrophoresis phase of 2-D gel electrophoresis, proteins are separated based on their net charge at a given pH. Each protein will migrate to a point in the gel where its net charge is zero. This process is known as what?
A. isoelectric focusing
B. electrophoretic honing
C. migratory centering
D. hypoelectric centering
E. hyperelectric focusing
A. isoelectric focusing
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The Archaea generally lack which of the following that are normally found in Gram-negative bacteria?
A. a complex peptidoglycan network B. outer membrane C. lipopolysaccharide D. All of the choices are correct.
Microbes that are found in hot springs or other extreme environments are most likely to be ____
a. Gram-negative b. Gram-positive c. archaeans d. cyanobacteria e. proteobacteria
Which group of organisms are likely to live in the low tide zone?
a) Hermit crab, rock weed, sea lettuce b) Rock louse, periwinkle, limpet c) Buckshot barnacle, striped shore crab d) Sea star, brittle star, sea urchins
Important molecular discoveries in the 1980s have led researchers to hypothesize that the original, vital organic molecule shaping living things was not what was first thought
What molecule is currently supported as the candidate for the vital molecule for early life?