Which of the following statements incorrectly describes viral spikes?ANSWERSpikes may be recognized by the host immune system that mounts an immune response to them.Spikes have an important role in determining what species and tissues the virus can infect.Lipid-based spikes make up the envelope that surrounds the capsid.Spikes are glycoprotein extensions that help viruses attach and gain entry to host cells.
Question
Which of the following statements incorrectly describes viral spikes?ANSWERSpikes may be recognized by the host immune system that mounts an immune response to them.Spikes have an important role in determining what species and tissues the virus can infect.Lipid-based spikes make up the envelope that surrounds the capsid.Spikes are glycoprotein extensions that help viruses attach and gain entry to host cells.
Solution
The statement that incorrectly describes viral spikes is: "Lipid-based spikes make up the envelope that surrounds the capsid."
This is incorrect because the spikes themselves are not lipid-based and do not make up the envelope. The envelope of a virus is indeed often lipid-based, but it is derived from the host cell membrane. The spikes, which are typically proteins (often glycoproteins), protrude from this envelope. They play a crucial role in allowing the virus to attach to and enter host cells, and can indeed be recognized by the host's immune system.
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