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In an attempt to locate genes\' promoters, researchers conduct deletion mutation

ID: 3164431 • Letter: I

Question

In an attempt to locate genes' promoters, researchers conduct deletion mutations the expression levels of the to locate the promoter for the 5S start site (TSS) is numbered +1. respective transcripts. Deletions were m and then meas ure ade in an experiment designed A gene and the results are shown below. The transcription ranscription (- for no expression, + for low levels of expression, for high levels of expression) 45 through-+++ +1 to +47 +1 to +63 + +50 to +80 +80 to +120+++ 24. From the data above, it can be concluded that the transcription factor binding sites for RNA polymerase III are located A) Upstream of the coding region (5' to the coding region) B) In the region between +50 and +80 within the coding region C) In the region +80 to +120 within the coding region D) Downstream of the coding region E) In the region -45 through -1 upstream of the coding region. 25. You are studying a biochemical pathway. Preliminary results suggest that this pathway is subject to end-product repression. This pathway is therefore most likely to be a(n) pathway. A) anabolic B) catabolic C) constitutive D) induced E) unregulated

Explanation / Answer

24 B) In the region +50 and +120 within the coding region

25 D) induced

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