6. Duringreplication, the host usually dies. a. Lysogenic b. Lytic c. Elliptic d

Question

6. Duringreplication, the host usually dies. a. Lysogenic b. Lytic c. Elliptic d. Lipstick 7. Which of the following is not a stage of lytic replication? a. Attachment b. Synthesis c. Entry d. Release e. All are stages 8. Temperate phages are: a. Lytic. b. Bacteriophages that insert their nucleic acids into the host's cell membrane. c. Bacteriophages that insert their nucleic acids into the host's DNA. d. Bacteriophages that insert their nucleic acids into eukaryotic cells 9. When phages carry genes that alter the phenotype of a bacterium, this is known a. Lysogenic conversion . Prophagery e. Phenotypie expulsiond. Revulsion 10. Viruses attach to animal cells via: a. Tail fibers b. Glycoprotein spikesc. Docking pads d. Spicules apter 14. I1. Symbiosis means: a. To live together b. To live in harmony c. To live apart d. To live mutually e. To live in unity 12. When neither host nor symbiont benefits or is harmed, this is termed: a. Commensalism b. Communism c. Amensalism d. Mutualism 13. Normal microbiota that cause disease under certain circumstances are best known as: a. Virulen b. Pathogenic e. Toxie d. Opportunistic 14. Conditions that provide opportunities for pathogens include: a. Stress b. Introduction of microbiota into unfamiliar areas. e. Immune suppression d. Changes in the number of microbiota e. All of the above

Explanation / Answer

6) b- lytic

lytic cycle usually ends with the death and lysis of host cell

7)e-all are stages

1)attachment- attach to cell mainly bacterial cell

2) penetration- onlty nucleic acid is injected into the cell through hole cause by tail fibres and enzyme

3) synthesis- replication of viral nucleic acid and protein and envelope

4) assembly

5) releases

8)c- bacteriophages that enter thein nucleic acids into their host's DNA

9)a- lysogenic conversion

10)b- glycoprotein spikes

11)d- to live together mutually

12)a- commensalism

13)d- opportunistic

14)e- all of the above

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