Answered: In the trp operon, tryptophan itself…

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Description: In the trp operon, tryptophan itself serves as the effector for the trp repressor which causes it to release from the operator andallow the gene to be transcribed.O TrueO False

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Biology

In the trp operon, tryptophan itself serves as the effector for the trp repressor which causes it to release from the operator and allow the gene to be transcribed.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter10: Control Of Gene Expression

Section: Chapter Questions

Problem 2SA: Binding of _______ to _______ in DNA can increase the rate of transcription of specific genes. a....

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The assembly of transcription factors on a promoter begins some 25 nucleotides upstream where it binds to a start _______________ sequence Group of answer choices TAAT ATTA TATA ATGC
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The lac operon is usually in the ________ position and is activatedby a/an ________ molecule.a. on, repressor b. off, inducer c. on, inducer d. off, repressor
. The tryptophan operon is usually in the _______position and is inhibited by a/an_______ molecule. on, repressor off, inducer on, inducer off, repressor
When an individual drink's a product with lactose (e.g., whole milk), what happens to the repressor system of the lac operon? The lac repressor is inactivated Transcription of the lac operon genes into a single mRNA β-galactosidase and lac permease are synthesized Lactose is rapidly metabolized by enzymes
. In an effort to determine the location of an operator sitefor a negatively regulated gene, you have made a seriesof deletions within the regulatory region. The extent ofeach deletion is shown by the line underneath the sequence, and the resulting expression from the operon(i = inducible; c = constitutive; − = no expression) isalso indicated.... GGAT C T T AGCCGGCTAACATGATAAATATAA......C C T AGAATCGGCCGA TTGTA C T A TTT ATAT T ...1 i2 –3 c4 –5 ca. What can you conclude from these data about thelocation of the operator site?b. Why do you think deletions 2 and 4 show no expression of the gene?
A mutation at the operator prevents the regulator protein from bindingWhat effect will this mutation have in the following types of operons? a. Regulator protein is a repressor of a repressible operon. b. Regulator protein is a repressor of an inducible operon.
A pre-initation complex (PIC) is required for transcription to begin. State which TFII protein has catalytic function.
The trp operon is a repressible system because during _______ levels of tryptophan, the repressor is _______. low; bound to the operator and shuts off transcription low; unbound and shuts off transcription high; bound to the operator and shuts off transcription high; unbound and shuts off transcription
In the txp operon, a repressor protein acquires a mutation such that it cannot bind to tryptophan. What will be the effect on the trp operon? 1. turned off permanently 2. turned on permanenty 3. constitutive4. a and c5. b and c
Which of these BEST DESCRIBE tryptophan in the Trp Operon? A. Acts as a corepressor B. Acts as a coactivator C. Acts as an inducer D. Acts as an enhancer
Components necessary for regulating the /trp/ operon do NOT include a. tryptophan. b. repressor protein. c. operator sequence. d. promoter sequence. e. CAP protein. f. cellular levels of protein synthesis.