Question

Viruses of Lymphocytes with no evident Long term harm?

A) Latent Viruses
B) Oncogenic Viruses
C) Retroviruses
D) Lytic Viruses

Answer 1

Latent viruses are not harmful and can remain hidden or dormant in cells. They can be difficult to detect and only cause periodic symptoms if any. Herpes simplex virus is an example of a latent virus.

Step-by-step explanation:

Viruses of lymphocytes that do not cause long-term harm are called latent viruses. These viruses can remain hidden or dormant inside the cell, causing no symptoms of disease. During latency, the viruses may exist as circular viral genome molecules outside of the host chromosome or become proviruses by integrating into the host genome. Latent viruses can be difficult to detect and may only be detected through viral diagnostic tests. An example of a latent virus is the herpes simplex virus, which can cause periodic symptoms in humans.

Answer 2

Latent viruses are those that remain in a dormant or hidden state within the host's cells without causing immediate harm or showing any evident long-term detrimental effects. Thus option a is correct.

Step-by-step explanation:

These viruses have the ability to remain inactive for extended periods, residing within the host's cells and occasionally reactivating to cause infection. During latency, the virus doesn't replicate actively or produce viral particles, allowing it to evade the host's immune response and persist without causing substantial harm or visible symptoms.

Unlike lytic viruses, which actively replicate, cause cell lysis, and often result in immediate harm to the host cells, latent viruses adopt a different strategy. They can integrate their genetic material into the host cell's DNA and remain in a dormant state, occasionally reactivating under certain conditions. This latent phase can persist for the lifetime of the host without causing severe damage, though reactivation may lead to recurrent infections or disease manifestation.

The characteristic feature of latent viruses, such as some herpesviruses, is their ability to establish long-term infections by remaining hidden within the host cells and causing periodic reactivations. These viruses often reside in specific cell types, such as lymphocytes, and maintain a balance between staying latent and reactivating, thereby demonstrating a relatively prolonged coexistence with the host without immediate or evident long-term harm.

Thus option a is correct.