Answer:
False. Glycoprotein spikes are not found on the capsids of all viruses.
Step-by-step explanation:
While many viruses, such as HIV and influenza, do have glycoprotein spikes on their outer envelope or capsid, there are many viruses that do not have them. For example, the capsid of the poliovirus does not have glycoprotein spikes.
It is important to note that the presence or absence of glycoprotein spikes is a characteristic that can vary widely among different types of viruses. Some viruses have a lipid envelope that surrounds the capsid, while others have a capsid without an envelope. The presence or absence of glycoprotein spikes can also vary within a particular family or genus of viruses. Therefore, it is not accurate to make a blanket statement that glycoprotein spikes are found on the capsids of all viruses.