Question

Explain life cycle of bacteriophages?

Answer 1

Bacteriophages that replicate through the lytic life cycle are called lyticbacteriophages, Adsorption is the attachment sites on the phage adsorb to receptor sites on the host bacterium. Specific strains ofbacteriophages can only adsorb to specific strain of host bacteria (viral specificity).

Answer 2

As mentioned in an earlier section, bacteriophages are viruses that only infect bacteria. Bacteriophages that replicate through the lytic life cycle are called lytic bacteriophages. After infecting bacteria with lytic bacteriophages in the lab, plaques can be seen on the petri plates. Plaques are small clear areas on the agar surface where the host bacteria have been lysed by lytic bacteriophages. The lytic life cycle is somewhat similar to the productive life cycle of animal viruses and consists of the following steps.
step 1 - adsorption
2. penetration
3.replication
4.muturation
5. release
6. reinfection

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