BIOLOGICAL CLASSIFICATION
VIRUSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Viral DNA is incorporated into the host genome.
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Many bacterial cells containing viral DNA are produced.
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The viral genome replicates without destroying the host.
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A large number of phages are released at a time.
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Detailed explanation-1: -During the lytic cycle, the bacteriophage DNA remains as a separate replicon inside the infected bacterial cell. This allows the replication of the bacteriophage DNA to occur independently without the influence of bacterial DNA replication.
Detailed explanation-2: -In the lytic cycle, a phage acts like a typical virus: it hijacks its host cell and uses the cell’s resources to make lots of new phages, causing the cell to lyse (burst) and die in the process.
Detailed explanation-3: -The lytic cycle, which is also commonly referred to as the “reproductive cycle” of the bacteriophage, is a six-stage cycle. The six stages are: attachment, penetration, transcription, biosynthesis, maturation, and lysis.
Detailed explanation-4: -Correct answer: In the lytic cycle, the virus simply reproduces inside the cell until the cell lyses. In the lysogenic cycle, the viral DNA (or RNA reverse transcripted into DNA using reverse transcriptase) is incorporated into the host’s DNA. As the host reproduces, the viral DNA goes into each daughter cell.