12) The top operon in E. coli is a group of genes that control the biosynthesis of tryptophan. Concerning regulation of trp operon true or false: Low levels of tryptophan in the cell inactivate the repressor and RNA polymerase cannot bind to the promoter site. In the absence of tryptophan, the repressor is active, and the structural genes are not transcribed. in the presence of tryptophan, the repressor is inactive, and the structural genes cannot be transcribed. High levels of corepressor tryptophan block transcription. Attenuation causes RNA polymerase to stop prematurely. ) The repressor of the trp operon is activated by the presence of lactose

Q: Which of these epigenetic changes could lead to reduced transcriptlon gene? Please make sure to…

A: Epigenetics is the study of changes in organisms produced by changes in gene expression rather than…

Q: The TRP operon functions by attenuation. Briefly explain how attenuation works and why it is…

A: Trp operon or the tryptophan operon is a group of genes that are responsible for tryptophan enzymes.…

Q: Explain and give an example (trp operon) of how repressor operons function in prokaryotes.

A: Repressor binding physically  blocks RNA polymerase from transcribing  structural genes.

Q: Transcriptional regulation is important for organisms to respond to their environment. Some of the…

A: Transcription is a process through which the DNA encoding a gene gets transcribed into mRNA. For the…

Q: Please describe in full detail how the LAC operon is controlled by both negative gene regulation and…

A: Lac operon is a gene controlling nit which contains operator, promotor and structural gene region.…

Q: Please help me iwht this question explain how the regulation of the Lac Operon incorporate both…

A: An operon includes a group of genes that are expressed under the same promoter.

Q: The process in which the two-dimensional structure of RNA from the L region of an operon can either…

A: The strategy of creating an RNA duplicate of a grouping is transcription. The transcript, known as…

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Q: methylmalonic acidemia

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Q: This question is regarding the 6 areas that can be involved in the control of gen expression: Part 1…

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Q: control medium that demonstrates the general growth rate of mutant candidates

A: Control Medium: This medium is used to demonstrate the general growth rate of mutant candidates in…

Q: operon

A: Answer: Operon: In genetics, an operon is a functioning unit of DNA containing a cluster of genes…

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Q: 1) The UR operon which is composed of sequences A, B, C, and D (which may or may not be genes of…

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Q: True or false: The lac operon is regulated by the binding of an enhancer to sequences just upstream…

A: The lac operon is associated with the transport and metabolism of lactose in E.coli specially. The…

Q: A. Which operons would be functional under these conditions? lac and trp B. What repressors would be…

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Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.