Suppose a Scientist Discovered a Mutant Strain of C

question 10

Multiple Choice

Suppose a scientist discovered a mutant strain of C. elegans worms that had lost the ability to regulate gene expression via RNA interference mechanisms. Which of the following might she predict is a possible source of this defect?

• A) There is a mutation in the gene that encodes the Dicer enzyme that makes it nonfunctional.
• B) There is a mutation that results in an overexpression of siRNAs.
• C) There is a mutation in the gene that encodes the Slicer enzyme that allows it to cut RNA more efficiently.
• D) There is a mutation in a gene that encodes an acetylase enzyme that prevents histone acetylation.
• E) There is a mutation in a gene that encodes an enzyme that selects the correct splice site for alternative splicing.

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Definitions:

Time

A constant progression in which events pass from the past through the present to the future.

Currency

A system of money in general use in a particular country or region for the exchange of goods and services.

Conditional Logic

A form of logic used in programming and mathematics that performs different actions or outcomes based on whether a specified condition is true or false.

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