Influenza A and influenza B are two viruses that cause the flu in humans. These viruses are able to infect host cells and replicate quickly. Which reproductive cycle is more likely used by these viruses?Select one:a.Mitosisb.Lysogenic cyclec.Binary fissiond.Lytic cycle
Question
Influenza A and influenza B are two viruses that cause the flu in humans. These viruses are able to infect host cells and replicate quickly. Which reproductive cycle is more likely used by these viruses?Select one:a.Mitosisb.Lysogenic cyclec.Binary fissiond.Lytic cycle
Solution
The reproductive cycle more likely used by these viruses is the Lytic cycle.
Here's why:
Influenza A and B are types of viruses. Viruses are not living organisms, so they don't reproduce through processes like mitosis or binary fission, which are used by cells and bacteria respectively.
Instead, viruses inject their genetic material into a host cell and use the host's cellular machinery to replicate. This can happen in two ways: the lytic cycle or the lysogenic cycle.
In the lytic cycle, the virus takes over the host cell's functions, replicates its own genetic material, and then causes the cell to burst, or lyse, releasing new virus particles.
In the lysogenic cycle, the virus integrates its genetic material into the host cell's DNA and the cell continues to live and reproduce normally for some time, with the viral DNA being copied and passed on to new cells along with the host DNA.
Influenza viruses are known to cause acute, or sudden and severe, symptoms, which is more consistent with the lytic cycle. In the lytic cycle, many viruses are produced quickly and the host cell is destroyed, causing damage to the body's tissues and leading to symptoms of illness.
So, the correct answer is d. Lytic cycle.
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