Water behind a dam has a certain amount of stored energy that can be released as the water falls over the top of the dam. It may be enough energy to turn a mill wheel or an electricity-generating turbine. Choose the term that best describes the type of energy stored in the water at the top of the dam.
A. Kinetic
B. Potential
C. Chemical
D. Radiant
Answer: B
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The precursor of each new nucleotide in a strand of DNA is a
A) deoxynucleoside 5'-diphosphate. B) deoxynucleoside 3'-diphosphate. C) deoxynucleoside 5'-triphosphate. D) deoxynucleoside 3'-triphosphate.
The purpose of sodium dodecyl sulfate (SDS) in a two-dimensional gel electrophoresis experiment is that it allows proteins to separated by
A. by charge only B. primarily by molecular mass C. by a combination of both size and mass D. net charge
You transform bacteria with a plasmid carrying the ampicillin-resistance gene ampR. How would you determine which bacteria took up the plasmid?
A. Bacteria containing the plasmid would be able to grow in the absence of ampicillin. B. Bacteria containing the plasmid would be able to produce ampicillin. C. Bacteria containing the plasmid would turn blue. D. Bacteria containing the plasmid would be able to grow in the presence of ampicillin. E. Ampicillin-resistance is necessary for the plasmid DNA to get into the bacteria.
Explain how the use of sequencing technologies finally brought the search for the HD gene to a close as reported by the Huntington's Disease Collaborative Research Group
What will be an ideal response?