When cloning a gene, one of the steps is to use restriction enzymes to insert the gene of interest into a vector. If you separated the empty vector (the vector without the gene of interest) and the cloned vector (the vector that has the gene of interest
added) using agarose gel electrophoresis, what do you expect to observe on the agarose gel if both vectors are loaded at the same position at the top of the gel?
A) The empty vector would migrate farther down than the cloned vector.
B) The cloned vector would migrate farther down than the cloned vector.
C) The empty vector would migrate the same distance as the cloned vector.
Answer: A
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Greenhouse gases are associated with all except:
a. global warming. b. coral bleaching. c. cooling of Arctic waters. d. sea level rise. e. melting of glaciers.
What does it mean when we say a gene is "turned off"?
A) The gene is no longer working properly. B) The gene cannot be transcribed and translated into a protein. C) The gene has a mutation. D) The gene is now activated.
Which of the following contain prokaryotic organisms that are pathogenic to humans?
a. Archaea b. Eukarya c. Bacteria d. Mercaria
An element:
a. is a substance that cannot be broken down chemically into any other substance. b. is an atom that has lost either a proton or an electron. c. must occur naturally on earth somewhere. d. is a component of an atom. e. All of the above are true.