Question 3 Which of the following statements about T-1 antigens is FALSE They require T cell help They do not result in memory cells They do not result in class switch or somatic hypermutation They contain a mitogen Question 4 What transcription factor is used to identify Treg cells? A FoxP3 CTLA4 GATA3 BCL6

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A: I gave you the answers below. Thank you.

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A:

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A: This question is based on cell antigen and transcription factors.

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Viral Infections

Viruses are abundantly found, minute entities that have genetic material enclosed within a protein coat. The proteinaceous material enclosing the genetic material of the virus is called a capsid. The genetic material could be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). A virus is too minute to be looked at with naked eyes and therefore visualized with the help of a microscope. They are acellular entities that require a host for processes, such as replication, transcription, translation and multiplication. Plants, animals, and bacteria act as host wherein the virus reproduce. Viruses cannot multiply outside the host's body and thus are considered nonliving outside the host body.