I believe the answer is<span> B. Mountain men were responsible for several discoveries that made travel easier for people moving west.
For example, they were known to be the group of people that first developed the Train Wagons, which allow people to combine the power of large number horses together positioned in a straight line in order to carry a huge amount of people and inventories.</span>
Answer: B. Spending would cause the economy to grow.
Explanation:
To build a new highway, the government would have to spend money. Government spending is one of the main determinants of economic growth because it pumps money into the economy.
This will bring jobs to the country (for instance construction labor and engineers) which would increase the income of those people. Those people will then have more money to spend on goods and services thereby leading to economic growth.
The single-stranded genomic DNA, the SDS, and the cellular waste are precipitated in a high-salt environment that is created by the potassium ion from the potassium acetate.
After centrifugation, the supernatant will still contain your plasmid DNA. Plant DNA has frequently been extracted using the potassium acetate method.
It has been suggested in situations when several markers need to be evaluated on the same samples since it generates enough DNA to test a high number of markers. Typically, laboratory procedures call for the use of potassium acetate.
In molecular biology applications, potassium acetate precipitates sodium dodecyl sulfate (SDS) and SDS-bound proteins to enable their removal from DNA. It may also be employed as a salt for the ethanol precipitation of DNA.
To learn more about potassium acetate
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