Does the Presence of Introns/exons in Eukaryotic Cells Provide More

question 40

Multiple Choice

Does the presence of introns/exons in eukaryotic cells provide more potential diversity in gene products (proteins) than is possible in prokaryotic cells?

• A)It doesn't-this is a trick question.There's the same potential for gene products (proteins)in a bacterium with 1,000 genes as there is in a eukaryotic cell with 1,000 genes.
• B)It does-each exon and each intron could be used individually and discretely to make agene product (protein).Since bacteria lack these,they will have less ability to create different proteins.
• C)It does-exons/introns can be spliced together in different ways post-transcription to yield different mRNAs (and therefore,different proteins).Bacteria lack this system,so the gene you transcribe is translated into the only protein you'll end up getting.
• D)It does-exons/introns can be spliced together in different ways at the DNA levelto eventually yield different mRNAs (and therefore,different proteins).Bacteria lack this system,so the gene you transcribe is translated into the only protein you'll end up getting.

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Definitions:

Producers

Producers are individuals or entities that create goods or provide services.

Efficiency Loss

The loss of economic efficiency that can occur when the balance between supply and demand is not achieved or is interfered with.

Excise Tax

A tax imposed on the sale of specific goods or services, often included in the price of the product, such as tobacco or alcohol.

Inelastic

Pertains to a scenario where the level of demand or supply for a product or service shows little reaction to price fluctuations.