Paramyxoviruses evade the host immune system by

Question

BlackTom AI · Accepted Answer

When considering how Paramyxoviruses evade the host immune system, it helps to recall their characteristic strategies related to cell-to-cell spread and immune masking.
Option 1: 'infecting only red blood cells.' This is inaccurate because paramyxoviruses do not primarily target red blood cells; their tropism includes respiratory epithelial cells and other tissues, and their pathogenic strategies involve syncytia formation rather than selective infection of erythrocytes.
Option 2: 'entering new cells by inducing syncytia formation.' This describes a key immune-evasion mechanism of paramyxoviruses: the fusion of infected cells with neighboring cells to form multinucleated syncytia, enabling direct cell-to-cell spread that bypasses extracellular neutralizing antibodies.
Option 3: 'producing an inhibitor specific for lymphocyte receptors.' While some viruses produce proteins that modulate the immune system, this description does not capture the classic or defining evasion tactic of paramyxoviruses, making it an unlikely general mechanism for this group.
Option 4: 'a display of host antigens on its surface.' Displaying host antigens to evade detection is more characteristic of other evasion strategies or different virus families; it does not describe the well-known syncytia-driven spread seen in paramyxoviruses.
In summary, the most accurate description among the options is the induction of syncytia formation to facilitate spread between adjacent cells, thereby helping the virus evade extracellular immune factors like neutralizing antibodies.

2254 BIOL 0980 SEC4010 Final 2025

Paramyxoviruses evade the host immune system by

查看解析

登录即可查看完整答案

类似问题

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

The break-even point is that at which:

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单