The Gene for a Hormone Necessary for Insect Development Contains

question 65

Short Answer

The gene for a hormone necessary for insect development contains binding sites for three transcription regulators called A, B, and C. Because the binding sites for A and B overlap, A and B cannot bind simultaneously. You make mutations in the binding sites for each of the proteins and measure hormone production in cells that contain equal amounts of the A, B, and C proteins. Figure 8-52 summarizes your results. In each of the following sentences, fill in the blank one of the phrases within square brackets to make the statement consistent with the results.

-Protein A binds to its DNA binding site __________ [more tightly/less tightly] than protein B binds to its DNA binding site.

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Definitions:

Literary Work

A work of fiction or non-fiction, either prose or poetry, which is recognized for its artistic value or intellectual content.

Salvage Value

The anticipated final value of an asset after concluding its operational life.

Depreciation Expense

An accounting method that allocates the cost of a tangible asset over its useful life, reflecting how much of the asset's value has been used up over a period.

Estimated Useful Life

The expected period over which an asset is anticipated to be usable by a company.