Nucleic Acid Sequences That Undergo Few Changes Over the Course

question 31

Multiple Choice

Nucleic acid sequences that undergo few changes over the course of evolutionary time are said to be conserved. Conserved sequences of nucleic acids

• A)are found in the most crucial portions of proteins.
• B)include all mitochondrial DNA.
• C)are abundant in ribosomes.
• D)are proportionately more common in eukaryotic introns than in eukaryotic exons.
• E)comprise a larger proportion of pre-mRNA (immature Mrna)than of mature mRNA.

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Definitions:

Total Cost Curve

A graph that depicts how the total costs of production vary with the level of output.

Economic Profit

A measure of performance that captures the surplus generated from business activities after accounting for both explicit and implicit costs.

Shuts Down

A temporary or permanent cessation of operations by a firm when it is not covering variable costs of production or facing insolvency.

Total Cost

The entirety of spending on the production of products or services, incorporating both costs that are constant and those that can change.