What cycle begins when newly formed phages enter the bacteria?
Correct answer: B. Lytic cycle
- A. Lysogenic cycle
- B. Lytic cycle
- C. Both
- D. None
Explanation
The lysogenic cycle is a type of viral replication cycle that occurs in certain types of viruses, including bacteriophages, which infect bacteria. During the lysogenic cycle, the viral DNA integrates into the host cell's chromosome and replicates along with the host DNA during cell division. When newly formed phages enter the bacteria the cycle that begins is called the lytic cycle. A bacteriophage can not replicate without the bacterial cell. So, the newly formed phage just goes in the lytic cycle where the first step, attachment takes place.
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About Viruses
Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.
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