A scientist identifies a potential transcription regulation site 300bp downstream of a gene and hypothesizes that it is a repressor. What experiment (with results) could he perform to support this hypothesis?

Q: Antibiotic-resistance is one of the gravest dangers to the world’s medical system. As a result, Dr.…

A: Antibiotic resistance refers to the ability of bacteria to resist the effects of antibiotics, making…

Q: The sequencing of entire genomes has made it possible to examine the level of gene expression in a…

A: The sequencing of the entire genome, from the small stretch of oligonucleotide probe, so that the…

Q: You are a genetic engineer that is working on transcriptional regulation in living organisms. In…

A: Genetic engineering is the use of genetic knowledge to artificially manipulate genes: It is one of…

Q: A mutation in the operator region of the trp operon can prevent the trp repressor from binding to…

A: Operons are the functional unit of transcription and regulation of genes in almost all bacteria and…

Q: Consider the Rho-dependent terminator sequence 5’CCCAGCCCGCCUAAUGAGCGGCCUUUUUUUU-3’. What affect…

A: The mutation is the change in the nucleotide sequence of the DNA. The point mutation is the mutation…

Q: Researchers are designing and testing antisense drugs as therapies for a variety of diseases,…

A: An antisense drug is a medication containing part of the non-coding strand of messenger RNA, a key…

Q: One of Dr. Peῆa’s doctoral students, Marisol, finds out there are multiple mutant forms of U…

A: Given Antibiotic-resistance is one of the gravest dangers to the world’s medical system. As a…

Q: E. coli are grown on a medium containing lactose. Once glucose is added to the medium, the bacteria…

A: In bacterial cells, the regulation of gene expression plays a crucial role in adapting to changing…

Q: What are two reasons that a eukaryotic gene (e.g. Green Fluorescent Protein in jellyfish) will not…

A: An eukaryotic gene is a segment of DNA that encodes the information needed to produce a functional…

Q: You have discovered a new bHLH gene and would like to use ChIP-Seq to learn more about it's role in…

A: A basic Helix-Loop-Helix Domain (bHLH) is a very common domain found in proteins that act as…

Q: Which of the following is required for positive regulation of gene expression?   Question 16…

A: Gene expression is the process by which the instructions in our DNA are converted into a functional…

Q: (Theme 5) AraC is a transcriptional activator that binds to the AraC binding site and is encoded by…

A: The introduction of arabinose into the bacterial culture serves as a trigger for the activation of…

Q: You are working in a research lab that is surveying the CFTR gene sequence in humans to identify new…

A: A synonymous mutation is mutation in the DNA sequence that leads to change in the codon for amino…

Q: the visual system, it is critical to keep a subset of neuronal genes in a repressed state to…

A: HAT play an important role  in regulations of gene expression. it helps to increase gene…

Q: The nascent RNA molecule synthesized during DNA transcription is trimmed (processed) by several…

A: The production of RNA from DNA is known as transcription or gene expression. In eukaryotic cells…

Q: What is the regulatory region of the Trp operon that is involved in alternative transcription…

A: A set of genes known as the trp operon is discovered in the bacteria E. coli and codes for the…

Q: Briefly describe an experiment you could perform to isolate ER-associated ribosomes and test if…

A: Ribosomes are cell organelles that are the site of important cellular processes such as translation…

Q: Which of the following applies best to post-translational control?   Question 13 options:…

A: Translation is a process in which synthesis of protein takes place from the mRNA. During protein…

Q: Explain how small effector molecules affect the function of activators and repressors.

A: Small effector molecules are those molecules which affect the regulation of transcription by binding…

Q: Your investors are concerned that the GasP protein might not be sufficiently produced under normal…

A: Answer a. As the transcription of GasP protein has been 'triggered' by some chemical (abiotic…

Q: According to the Jacob-Monod model of regulation of gene transcription in bacteria, the DNA sequence…

A: Q.Explanation:- Lac operon is a concept that controls the transcription in prokaryotic cells such as…

Q: Mutations in bacterial promoters may increase or decrease the rate of gene transcription. Promoter…

A: The -10 site sequence in bacterial promoters is essential for RNA polymerase binding and…

Q: Compare and contrast the activities of an activator protein anda repressor protein.

A: Gene regulation is a mechanism by which cells increase or decrease the productivity of any specific…

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.