What are the two regulatory mechanisms that govern the replicative capacity of cells growing in vitro and in vivo?

Q: What is an exconjugant? How do you think that exconjugants were obtained? (It might include genes…

A: Answer: Introduction: Conjugation is the process of transfer of DNA from one bacterium to other by…

Q: Most structural genes of bacteria are grouped together and transcribed from a single affect…

A: DNA and RNA are are nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid…

Q: Mutations in the dnaA gene of E. coli are lethal. Therefore, we can only study such mutations if we…

A: Mutations are any abnormal changes in the DNA sequence or chromosome of organisms that most of the…

Q: Suppose a gain-of-function mutation happens in an oncogene. Which of the following changes is likely…

A: Cancer causing gene is known as oncogenes and its an abnormal active gene which promotes growth of…

Q: Describe four mechanisms that result in the generation ofantigen receptor diversity.

A: Antibodies are the antigen-binding glycoproteins that are synthesized exclusively by B- cells and in…

Q: How do we know that during transduction bacterial cell-to- cell contact is not essential?

A: Transduction is a process of genetic recombination by which a foreign DNA is transferred into a…

Q: Gene Expression: 14) Look at the diagram: a) For each of the molecules in the diagram, identify what…

A: Q. Ans:- Gene expression:- Gene expression is a term that explains that a nucleotide sequence known…

Q: Differentiate between genralized and specialized transduction?

A: Transduction is the process where bacterial DNA is transferred by bacteriophages (viruses) into the…

Q: In eukaryotes, activator proteins bind to what type of DNA sequence? O A) terminators O B) enhancers…

A:

Q: a piece of DNA is produced with  1) an enhancer from a gene expressed in the liver, 2) a promoter…

A: Given: A piece of DNA is produced with 1) an enhancer from a gene expressed in the liver, 2) a…

Q: If cells are infected with a vesicular stomatitis virus (VSV) strain in which a viral gene (VSVG) is…

A: VSV (Vesicular Stomatitis Virus) is a single-stranded RNA virus belonging to the rhabdoviridae…

Q: Where does RNA polymerase bind DNA?a) Promoterb) Operatorc) Enhancerd) None

A: The DNA is the genetic material that is passed from one generation to the next generation. It is…

Q: What is the difference between REGULATORY VS SUBSTRATE DEPENDENT PATHWAYs. consider WT, single…

A: There are two types of paths available. Regulatory routes and assembly or metabolic processes have…

Q: You generate several temperature sensitive mutant strains of bacteria. To study what genes might be…

A: Introduction :- Bacterial mutants frequently lose a growth characteristic (such as the inability to…

Q: What are the advantages of having both an activatorand a repressor protein?

A: Gene expression is regulated by the turning off of the expression of genes when they are not…

Q: n ligand binds to a ligand gates ce closes e opens ns flow through gate is released

A: # Here I am answering only one question i.e. third . Please send questions one by one in the portal…

Q: Question 6: What do you think is the composition of the medium in the master plate (minimal, minimal…

A: Nutrient media A nutrient media is a medium that is used to support microbial growth in…

Q: Explain why the three transformations produce different number of colonies, commenting on the…

A: Transformation is the process of gene transfer into bacteria in which the competent bacteria takes…

Q: Proteins like channels embedded within the cell's plasma membrane and enzymes scattered in the…

A: Protein synthesis is a complex biological process that involves transcription of the gene into mRNA…

Q: Regulation of gene expression is necessary because: A) all cells do not need to express all genes…

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

Q: When ligand bin

A: 23) the correct answer is B) Animal cells respond to hormones produced by bacteria.   These hormones…

Q: Rho independent terminators Select an answer and submit. For keyboard navigation, use the up/down…

A: Transcription is the process in which the RNA is formed out of the DNA. The process of transcription…

Q: What is UPR? What is the downstream impact of UPR activation in an eucaryotic cell?

A: UPR stands for unfolded protein response. It is an intracellular signal transduction pathway that…

Q: There is a group of six or so genes, called luxlux genes, whose gene products are necessary for…

A: Bioluminescent organisms consist of a multiple set of distinct species that are distributed widely…

Q: Draw the Western Blot that would result from undertaking the same experiment in the presence of: i)…

A: It is technique which is also known as protein immunoblotting technique and is versatile technique…

Q: cientists used a Rat6-Raf transformed cell line for the anchorage-independent growth control…

A: The Rat6-Raf cell line is a transformed cell line that contains an activated form of Raf. In this…

Q: What is the effect of an increased Cro concentration on the expression of the gene for the λ…

A: The lytic cycle is the rupture of the host cell, resulting in the release of a number of viruses.…

Q: Which of the following bacterial operon is not controlled by attenuation? a) Histidine b) Leucine c)…

A: The bacterial operon that is not controlled by attenuation is the arabinose operon. Attenuation is a…

Q: Which sequence is most likely to be found in a promoter? a) CGGTGTATATCGTAC b) GTACAGTCATCCCGT c)…

A: Promoter It is a DNA sequence that controls whether a gene is turned on or off. The promoter…

Q: Transcription is catalyzed bya) DNA-dependent RNA polymerasesb) RNA-dependent DNA polymerasesc)…

A: The DNA is the genetic material that is passed from one generation to the next generation. It is…

Q: Which of the following is true of phase variation? A) O It is triggered by stalled ribosomes. B) O…

A: Phase variation is a feature seen in Salmonella, in which it can withstand unfavorable environmental…

Q: Sam wants to alter his interrupted mating experiment by placing a filter in between the donor and…

A: Introduction  Interupted mating is a technique for identifying bacterial genes that involves…

Q: 1. (a)  Binding of inducer protein to repressor protein     Gene is switched ON     Gene is…

A: Gene regulation is done with the help of the regulatory protein binding with the regulatory sequence…

Q: Choose all of the following that you think are correct Protein(s) that play a role in initiating…

A:

Q: Researchers use a technique call RNA interference to knock down (i.e. not completely gone) the Bcl-2…

A: RNA is the nucleic acids similar to the DNA and contains uracil instead of the thymine. It plays…

Q: Cyclin B and Cdk1 make up MPF which is important to the regulation and initiation of mitosis. a)…

A: Cell cycle The cell cycle is a series of steps where the chromosomes and other cell material…

Q: What is the major difference between generalized transductionand transformation?

A: TRANSDUCTION:- Is the process  by which DNA is transferred from one bacterium to another by a virus…

Q: What is a response element? O A) A short stretch of DNA sequence implicated in the initiation of…

A: They are short sequences of DNA within a gene promoter or enhancer region that helps in regulation…

Genomic studies

Genomic studies (genomics) is the study of the whole genome of an organism. Using bioinformatics and high-performance computing, genomic researchers examined massive amounts of deoxyribonucleic acid (DNA)-sequence data to discover variations or mutations that affect drug response, health, or disease. Genomics is a much younger discipline than genetics, having only emerged in the last few decades as a result of technological advancements in DNA sequencing and computational biology.