A Researcher Has Arrived at a Method to Prevent Gene

question 29

Multiple Choice

A researcher has arrived at a method to prevent gene expression from Drosophila embryonic genes. The following questions assume that he is using this method.
-The researcher in question measures the amount of new polypeptide production in embryos from 2-8 hours following fertilization and the results show a steady and significant rise in polypeptide concentration over that time. The researcher concludes that

• A) his measurement skills must be faulty.
• B) the results are due to building new cell membranes to compartmentalize dividing nuclei.
• C) the resulting new polypeptides are due to translation of maternal mRNAs.
• D) the new polypeptides were inactive and not measurable until fertilization.
• E) polypeptides were attached to egg membranes until this time.

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Definitions:

Total Resistance

The overall opposition to electric current flow in a circuit, calculated by adding the resistance values of individual resistors in series and appropriately combining resistors in parallel.

Parallel Circuit

An electrical circuit in which components are connected in parallel, such that the voltage across each component is the same, and the total current is the sum of the currents through each component.

Parallel Circuit

An electrical circuit in which components are connected across common points or junctions, allowing current to divide among the paths.

10 Ω

A specific resistance value, indicating an electrical component or circuit offers ten ohms of resistance to the flow of electric current.