Ionizing Radiation Alters DNA by

question 48

Multiple Choice

Ionizing radiation alters DNA by

• A) deleting bases.
• B) removing the nitrogen from the bases.
• C) kinking the double helix.
• D) breaking the sugar-phosphate backbone.
• E) reversing replication forks.

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Definitions:

Progressive Tax

A tax system in which the tax rate increases as the taxable income or amount increases.

Regressive Tax

A tax system where the tax rate decreases as the taxable amount increases, disproportionately affecting lower-income earners.

Progressive Taxation

The tax as a percentage of income increases as income increases.

Proportional Taxation

The tax as a percentage of income remains constant as income increases; also called a flat tax.