首页/ 题库 / [简答题]以大肠杆菌T系噬菌体为例,简要叙述病毒的的答案

以大肠杆菌T系噬菌体为例,简要叙述病毒的繁殖过程。

简答题
2021-07-18 00:01
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正确答案
(1)吸附:病毒吸附于敏感细菌表面的受体上特定部位;(1分)
(2) 侵入:噬菌体通过水解破坏细胞壁,DNA进入。(1分)
(3)复制与聚集:细菌自身的DNA被破坏,病毒借助于细菌的合成机构,为自己工作,即复制噬菌体的DNA和其他结构。病毒的DNA和蛋白质等在细菌体内装配成一个完整的大肠杆菌噬菌体。(2分)
(4)宿主细胞裂解和成熟噬菌体粒子的释放:噬菌体粒子成熟后,导致宿主细胞破裂,释放出噬菌体。(1分)

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以大肠杆菌T系噬菌体为例,简要叙述病毒的繁殖过程。
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