Question

In: Biology

Outline and explain the lytic and lysogenic cycles. please use correct terminology in describing the steps.

Outline and explain the lytic and lysogenic cycles. please use correct terminology in describing the steps.

Solutions

Expert Solution

Lysogenic cycle: It involves the start of the infection stage of the cell cycle. The virus recognizes the surface of the bacterial cell and gets attached on its membrane. The membrane forms a pore. This helps in the movement of the genetic material of the virus inside the bacterial cell. This genetic material then integrates with the chromosome of the bacterial cell. The viral genes consists of the genes coding for the capsomere, stalk and the base of the virus. This stage is called as the lysogenic stage of the virus.The phage virus is called as the prophage. Under the conditions of the environmental stress the phage genome is excised from the bacterial chromosome and leads to the formation of the new phage particles.

Lytic cell: This involves the infection of a bacterial cell by a phage virus strain. The phage genetic material enters the bacterial cell and infects it. This leads to the manipulation of the bacterial cell to synthesize new virus particles inside the bacteria through the process of DNA replication, transcription and translation. The new phage particles are formed leading to the destruction of the bacterial cells.

the diagram of the lytic and lysogenic stage of the virus inside the bacterial cell.


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