Quelle est la structure d'un virus ?
Quelle est la structure d'un virus ?
Il est composé d'une ou plusieurs molécules d'acide nucléique (ADN ou ARN, simple ou double brin), éventuellement incluse dans une coque protéique appelée capside, voire d'une enveloppe lipidique (ex : l'Ebolavirus est un virus enveloppé).
Qui a inventé le mot virus ?
(1478) Du latin virus (« poison, toxine »). Le sens de « germe pathogène » apparaît vers 1850–1860, le sens moderne au XX e siècle. (Informatique) (Vers 1983) Terme inventé par Leonard Adleman en 1983 (en anglais).
How would you classify a virus?
- Viruses are classified based on their shape, replication properties, and the diseases that they cause. Furthermore, the shape of a virus is determined by the type and arrangement of proteins in its capsid . Viruses pathogenic to humans are currently classified into 21 groups.
Is a virus a living thing why or why not?
- Answer 3: Viruses are not considered "alive" because they lack many of the properties that scientists associate with living organisms. Primarily, they lack the ability to reproduce without the aid of a host cell, and don't use the typical cell- division approach to replication.
What is the best description of a virus?
- Answers. The best description of a computer virus is. Someone first starts out making a malicious program, then can send it to a unexpected user. After that, when the user opens the malicious program, it can do negative things on the target. The virus first starts out in the system32, then infects a random file type for example, exe files,...
What does a typical virus consist of?
- A virus is a microscopic parasite which can infect living organisms and cause disease. It can make copies of itself inside another organisms cells. Viruses consist of nucleic acid + a protein coat. Usually the nucleic acid is RNA; sometimes it is DNA.
