After lambda infects a cell, how does it decide to create a lysogen? Name the major cis and trans players and their function.

Q: Give 4 examples of transcription factors / non-structural proteins you have learned in this course?…

A: Since you have posted multiple questions we solve the first two questions for you. To get the…

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: A gene in humans has two alleles, M and N, that code for different surface proteins on red blood…

A:

Q: Isolates of Corynebacterium diphtheriae cause disease only if they carry a lysogenic bacteriophage…

A: Diphtheria is mostly caused by Corynebacterium diphtheriae. It is a gram-positive rod-shaped…

Q: Certain environmental conditions such as exposure to UV light areknown to activate lysogenic λ…

A: Lambda (λ) phage is a bacterial virus, or bacteriophage, which infects the bacterium Escherichia…

Q: Consider the phase variation of flagella in Salmonella. Describe the phenotype of a cell in which…

A: Understanding the genetic regulation of flagellar phase variation in bacteria, such as Salmonella,…

Q: Is the Degradation of Xrn1 in poliovirus-infected cells an example of virus-encoded molecules…

A: No, this mechanism is a common theme in viral infection, including poliovirus infection. This is…

Q: Pegard to bacteriophage lambda's decision to enter the lytic or lysogenic cycle, which of following…

A: INTRODUCTION A bacteriophage, or phage for brief , is a virus that infects bacteria. Like other…

Q: My Avya mouse is brownish because a) the CpG island with the transposon is unmethylated. b) it was…

A: Epigenetic systems that facilitate gene-environment interactions are involved in the ability of…

Q: The RNA transcript of a region of T4 phage DNA contains the sequence 5’-AAAUGAGGA-3'. This sequence…

A: The bacteriophage T4 encodes 10 proteins, which are collectively known as the replisome, that are…

Q: Consider the V region domains of the TCRα and TCRβ chains and the genetic loci that encode them.…

A: The light chains of an antibody can be classified as either kappa (κ) or lambda (λ) type based on…

Q: Give an example of a nucleoside analogue that has been used successfully as an antiretroviral drug.…

A: Nucleoside analogue can be defined as a class of drugs ,which are mainly used to as antiviral agent…

Q: Draw the SMN2 pre-mRNA (SMN2 has 10 exons and 9 introns), indicate the 5’ and 3’ SS location. [2pts]

A: Spinal muscular atrophy (SMA), which results from the deficiency of articulation of the endurance of…

Q: In immediate-early transcription of the phage genome, the N protein works as an antiterminator to…

A: Lambda phage is a bacteriophage which can enter either the lytic or lysogenic cycle. The…

Q: Which of the following statements is not true of both the LacI and TrpR repressor proteins?a) an…

A: The objective of the question is to identify the statement that is not true for both LacI and TrpR…

Q: Gene expression in bacteria is controlled by the operon model.  a) Why is the operon model…

A: BASIC INFORMATION  OPERON MODEL  This model of gene regulation was put forward by Francis Jacob and…

Q: Human Papillomaviruses has of many strains. Some of them cause warts while others can cause cancer.…

A: *Human papillomaviruses are type of viruses that causes abnormal tissue growth and cause other…

Q: discuss the Role of telomere in disease  Provide detailed examples

A: Telomerase is an ribonucloprotein molecules responsible for end replication of leading strand of…

Q: Describe the function of CYP3A4?

A: Answer- CYP3A4 or cytochrome P450 3A4 is a human enzyme that is present and synthesized in the…

Q: Which of the following is a known characteristic or procesds that can lead to genetic changes in…

A: A virus is an infectious agent of small size and simple composition that can multiply only in living…

Q: V/D/J recombination frequently yields a gene whose mRNA cannot be successfully translated into an…

A: Somatic recombination is the process for generating antibody and T-cell diversity in mammalian…

Q: The bacteriophage genome consists primarily of genes encodingproteins that make up the head, collar…

A: The virus is microscopic and is even smaller than bacteria. They have their genetic material…

Q: What is the difference between the lytic and lysogenic cycle of bacteriophages? In the lysogenic…

A: Bacteriophages are the viruses that are known to infect the bacteria. Once virus enters inside the…

Q: The following interactions occur during the expression and secretion of an antibody heavy-chain…

A: 1. A signal peptide sequence and a signal recognition particle (SRP) interact (Step c):  - Early in…

Q: Is the Degradation of Xrn1 in poliovirus-infected cells an example of virus-encoded molecules…

A: The objective of the question is to understand whether the degradation of Xrn1 in…

Q: Ahmed had isolated bacteria from the sputum of a patient that seemed somewhat resistant to their…

A: The phage-resistant bacteria may develop with time just like the antibiotic-resistant bacteria.…

Q: What percentage of cells in an organ or a tissue need toexpress a therapeutic gene to alleviate the…

A: Gene therapy is the method that involves the insertion of DNA or sequence of DNA in the cells of the…

Q: The p53 protein was discovered through its association with SV40 T antigen and assumed initially to…

A: In the p53 gene, mutations (changes) can cause cancer cells to grow and spread in the body. In a…

Q: Define the following terms: a. lytic cycle b. prophage c. transduction d. lysogeny e. nuclocapsid

A: Bacteriophage was a type  virus which uses the  bacterial cell  as a host for the process of…

Q: Discuss the genetic switch that controls the lytic versus lysogenic path in bacteriophage lambda.

A: Gene regulatory network that shows bistable behavior is known as genetic switches. It is studied…

Q: Describe the changes that can convert a proto-oncogene into an oncogene.

A: A normal functioning gene turns into a proto-oncogene, which can cause cancer when it is altered as…

Q: Look at the structures and predict the type of inhibition (i.e. competitive or non-competitive)…

A: Competitive inhibitor is a structural analogue of the substrate and competes for active site of…

Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.