When a Region of DNA Must Be Repaired by Removing

question 3

Multiple Choice

When a region of DNA must be repaired by removing and replacing some of the nucleotides, what ensures that the new nucleotides are in the correct sequence?

• A) DNA cannot be repaired and this explains why mutations occur.
• B) Specific enzymes bind the correct nucleotides.
• C) The new nucleotides base pair accurately with those on the complementary strand.
• D) The repair enzyme recognizes the removed nucleotide and brings in an identical one to replace it.
• E) The three-dimensional structure determines the order of nucleotides.

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Definitions:

Herfindahl Index

A method for evaluating market concentration by squaring individual firms' market shares and then aggregating these squared figures.

Concentration Ratios

Measures that indicate the extent of market control by the largest firms in an industry, reflecting the level of competition.

Market Power

Describes the ability of a company or group to manipulate or control prices within a market, often by influencing supply, demand, or both.

Four-Firm Concentration Ratio

A measure of market concentration that quantifies the market share of the four largest firms within an industry, often used to assess the competitiveness of a market.