Two Common Methods for Obtaining Large Quantities of a DNA

question 64

Essay

Two common methods for obtaining large quantities of a DNA fragment or gene of interest is by PCR or by DNA cloning (e.g., construction of a DNA library). Explain one advantage of using PCR and one advantage of using DNA cloning in a living cell.

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Definitions:

Regressive Rate Structure

A tax system where the tax rate decreases as the taxable amount increases, placing a higher burden on lower earners relative to higher earners.

Marginal Tax Rate

The rate at which the next dollar of taxable income will be taxed, a tool used to gauge the impact of additional income or deductions on income tax.

Taxable Income

The amount of income used to calculate how much the tax will be for an individual or a corporation, after all deductions and exemptions.

Tax Liability

The total amount of tax owed to the IRS by an individual or business for a given tax year.