By which life cycle temperate phage virus keep reproducing and do not lyse host

Question

By which life cycle temperate phage virus keep reproducing and do not lyse host bacterial cell? a. Lytic cycle b. Lysogenic cycle c. Both of the above d. None of the above What is the reason for the above question? a. Because viral DNA circularizes separately b. Viral DNA integrates into the bacterial DNA c. Viral DNA fragmented bacterial chromosomes d. All of the above What do you call the viral DNA part after it integrated in the bacterial genome? a. Plasmid DNA b. Genomic DNA c. Prophage d. Lysogen Compared to the regular conjugation, Hfr conjugation is: a. Inefficient b. Twice as much inefficient c. 100 times more efficient d. Same efficiency During the process of transformation after the extrachromosomal DNA is picked up and cross over, both strands may have: a. Identical sequences b. Different sequences c. Both of the above d. None of the above What do we call such combinations (in the question above)? a. Homoduplex b. Heteroduplex c. Non-homologous chromatids d. None of the above After you infect a bacterial lawn of colony (on agar plate) with virus you observe holes (spaces) in the lawn. They are known as: a. Bacterial colonies b. Viral colonies c. Viral + bacterial colonies d. Plaques Which of the following in NOT a bacterial DNA transfer methods? a. Gene cloning b. Conjugation c. Transformation d. Transduction Which of the following would be able to transfer BACTERIAL GENOMIC DNA to another bacterium without really both bacteria cone in contact? a. Conjugation b. Hfr c. F'(prime) d. None of the above By what mechanism is that done (In the question above)? a. Linear plasmid DNA transfer b. Regular looping out of plasmid DNA c. Irregular looping out of plasmid DNA alongwith bacterial genomic DNA d. Donating it away Which of the following Rec proteins carry out single stranded (ss) DNA replacement? a. RecA b. RecBCD c. Both of the above d. None of the above What is injected by a bacteriophage into a host Escherichia coli? a. Plasmid DNA b. Viral capsid (protein coat) c. Viral genome (DNA or RNA) d. Al of the above What may cause a viral lysogenic cycle to go to lytic one? a. Temperature or Heat or moisture b. Nutrient scarcity c. Acidity or alkalinity d. Any or all of the above In which of the following transduction types both bacterial and ph age DNA s are packaged into phage head? a. Generalized b. Specialized c. Both of the above d. None of the above

Explanation / Answer

25) The life cycle of phage particle is of two types: lytic cycle and lysogenic cycle. In lytic cycle, the phage particle after making many viral proteins gets released after rupturing the host cell. In lysogenic cycle, the phage genome gets integerated into the host genome and is transmitted from generation to generation. Therefore, the answer for this question is option b (lysogenic cycle).

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.