PATHOLOGY MCQ
IMMUNE RESPONSE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A nucleic acid and protein coat
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A nucleus and a protein coat
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A nucleic acid and a nucleus
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A cell and a injection device
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Detailed explanation-1: -The simplest virions consist of two basic components: nucleic acid (single-or double-stranded RNA or DNA) and a protein coat, the capsid, which functions as a shell to protect the viral genome from nucleases and which during infection attaches the virion to specific receptors exposed on the prospective host cell.
Detailed explanation-2: -Viruses are simple, and are made up of up to three constitutive elements: A genome, made up of nucleic acids that can be DNA (like humans) or RNA. RNA is very similar to DNA; both are made up of of chains of nucleotides (ACGT/U) that make up genes that are translated in proteins.
Detailed explanation-3: -A virus is made up of genetic material that is encased with a protective protein coat called the capsid. The capsid also helps the virus to infect host cells by binding to the host receptor proteins and releasing its genetic material.
Detailed explanation-4: -A capsid is a virus’s protein shell that encases its genetic material. It is built up of protomers, which are oligomeric (repeating) structural subunits formed of protein. Viruses contain capsids, which are protein covers that safeguard their genetic content.
Detailed explanation-5: -Viruses are made up of nucleic acids (DNA or RNA) surrounded by a protein coat. They are smaller than the smallest bacterium. Viruses consist of nucleic acid (genetic material) surrounded by a capsid (protein coat).