IMMUNOLOGY

OVERVIEW OF THE IMMUNE SYSTEM

VIROLOGY AND IMMUNITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
During which stage of the Lytic cycle do the new viruses rupture out of the host cell?
A
Infection
B
Replication
C
Synthesis
D
Assembly
E
Lysis
Explanation: 

Detailed explanation-1: -The final stage is release. Mature viruses burst out of the host cell in a process called lysis and the progeny viruses are liberated into the environment to infect new cells.

Detailed explanation-2: -Assembly-The host cell assembles the components into new copies of the virus. Lysis-The cell bursts open, resulting in its death and also in the release of more of the virus which can now go on to infect other cells.

Detailed explanation-3: -In the lytic cycle, the phage replicates and lyses the host cell. The third stage of infection is biosynthesis of new viral components. After entering the host cell, the virus synthesizes virus-encoded endonucleases to degrade the bacterial chromosome.

Detailed explanation-4: -Egress. The last stage of viral replication is the release of the new virions produced in the host organism. They are then able to infect adjacent cells and repeat the replication cycle.

Detailed explanation-5: -Once the host cell has produced a sizeable number of viral particles, the viral particles will burst through the cell through a process called lytic release. Once they burst through the cell, the viruses will go on to infect other host cells.

Detailed explanation-6: -The lytic cycle: The phage infects a bacterium, hijacks the bacterium to make lots of phages, and then kills the cell by making it explode (lyse).

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