Answer:
In order to study or detect individual genes or specific DNA regions or mutations of interest, it is often necessary to obtain a large quantity of nucleic acid for study. Rather than isolate a single copy of the target DNA from a large number of cells, it is often more useful to generate multiple copies of a target from a single molecule of DNA or mRNA, via an in vitro amplification method.
Explanation:
Answer:
The atom's properties are rearranged.
Explanation:
"A compound is a substance formed when two or more elements are chemically joined. ... When the elements are joined, the atoms lose their individual properties and have different properties from the elements they are composed of. A chemical formula is used a quick way to show the composition of compounds."
"They are rearranged to form new products [in a chemical reaction] with different physical and chemical properties from the reactants."
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