When a temperate phage infects a bacteria cell it O immediately undergoes the temperate lifecycle. O immediately integrates its genome into the host cell genome; when conditions are harsh, the phage excises out of the host chromosome and undergoes the lytic lifecycle. O immediately undergoes the lytic lifecycle. O can either immediately undergo the lytic lifecycle or immediately undergo the lysogenic lifecycle, and it usually undergoes the lytic lifecycle.

When a temperate phage infects a bacteria cell it O immediately undergoes the temperate lifecycle. O immediately integrates its genome into the host cell genome; when conditions are harsh, the phage excises out of the host chromosome and undergoes the lytic lifecycle. O immediately undergoes the lytic lifecycle. O can either immediately undergo the lytic lifecycle or immediately undergo the lysogenic lifecycle, and it usually undergoes the lytic lifecycle.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter21: Viruses

Section: Chapter Questions

Problem 3VCQ: Figure 21.10 Which of the following statements is false? In the lytic cycle, new phages are produced...

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Classify each statement as true of generalized transduction or specialized transduction. Generalized transduction Specialized transduction Answer Bank Genes transfer from random sites in the bacterial chromosome. This utilizes lysogenic phages. Genes that transfer depend on the prophage insertion site. This utilizes lytic phages. Phage inserts itself at a specific site in the bacterial chromosome. This requires accidental packaging of bacterial DNA in viral capsids.
A researcher is studying the r// locus of phage T4. Three //-- strains are obtained: A, B, and C. E. coli strain K(A) is coinfected with two rl strains simultaneously and the results are recorded. Infection with A and B phage = lysis occurs Infection with A and C phage = lysis occurs Infection with B and C phage = no lysis occurs What can be inferred from this complementation test? Multiple Choice Strains A, B, and C have mutations in three different genes. Strains A and B have mutations in the same gene, and strain C has a mutation in a different gene. Strains A and C have mutations in the same gene, and strain B has a mutation in a different gene. Strains A, B, and C have mutations in the same gene. Strains B and C have mutations in the same gene, and strain A has a mutation in a different gene.
phage can be "induced" as a result of DNA damage. Consequences of induction include. Temperate phage, e.g lambda phage; lytic cycle and transduction Lytic T4 phage, assembly, conjugation O Lytic phage, e.g. T4 phage; lysogenic cycle, prophage formation Temperate phage, e.g. lambada phage, prophage formation, transformation O T4 phage, lytic cycle, specialized trasnduction
When bacteriophage P1 causes E. coli to lyse, the resulting materialis called a P1 lysate. What type of genetic material would befound in most of the P1 phages in the lysate? What kind of geneticmaterial is occasionally found within a P1 phage?
The figure depicts five stages of the lytic cycle. ********* Select the statement that describes stage 3 of the lytic cycle, as shown in the diagram. The host cell synthesizes cellular proteins to prepare for lysis. The host cell incorporates phage DNA into its own genome. The host cell replicates the phage DNA. O The host cell synthesizes proteins that degrade phage DNA.
This gene is responsible for making the protein that catalyzes the recombination of the phage genome into the host bacterial chromosome is: excise integrase attP attB
Host DNA is digested into small pieces, which are occasionally assembled with phage proteins, creating a phage with bacterial chromosomal DNA. If the breakage of the chromosomal DNA is not random (i.e., it is more likely tobreak at certain spots as opposed to other spots), how might suchnonrandom breakage affect cotransduction frequency?
Indicate whether each statement applies to the lytic or lysogenic cycle of phage A, or to both. 1. The host cell is lysed. (Click to select) v 2. The genetic material of the phage is copied. (Click to select) v 3. The genetic material of the phage is integrated into the bacterium's chromosome. (Click to select) v 4. Two ends of the phage DNA become covalently attached to one another. (Click to select) v 5. The integrase gene is turned on.: (Click to select) v (Click to select) lytic lysogenic both
Describe the reason behind the occurrence of phage growth and release by the mating with the non-lysogenic recipient, but not with the infection by a lysogenic recipient.
Describe the process of replication of a Lytic phage and a Lysogenic phage. In your answer you must include the different steps of the replication process as well as appropriate terms used to name these steps of the process. Compare and contrast both methods of replication and indicate the relevance of lysogenic cycle of phage replication to bacterial antibiotic resistance.
During the lysogenic cycle of lambda (1) phage the phage genome is integrated in the host chromosome where it is passed on to daughter cells through binary fission. the phage DNA is copied and accumulates in the cytoplasm. Then a trigger causes capsid proteins to be made and phages are assembled. the product of one prophage gene is made and it activates most of the other prophage genes. the viral genes immediately turn the host cell into a lambda-producing factory. Then the host lyses. 0000
What is the difference between the lytic and lysogenic cycle of bacteriophages? In the lysogenic cycle, the phage DNA integrates itself into the host genome after penetration, and continues to biosynthesis when conditions change The host cell is not killed in the lysogenic cycle The lytic cycle occurs in the nucleus, while the lysogenic cycle occurs in the cytoplasm In the lysogenic cycle, penetration is achieved through phagocytosis