accelular microorganisms (viruses, viroid and prions)

更多类似内容

Describing people

由raeli fernandez castellano

Adverb Phrases

由KAROL JIMENA VACA RIVERA

Present perfect

由Nelly Garcia

Colloid

由Deva Dersan

accelular microorganisms (viruses, viroid and prions)

4. viral structures

Caspid (protein coat) ~icosahedral ~pleomorphic ~cylindrical

Envelope (covered caspid) ~lipid ~protein ~carbohydrates

Nucleic Acids ~DNA or RNA ~ss or ds DNA ~segmentation ~sense of the strand

3. size

~smaller than bacteria ~wide range

2. host rrange

~infect inveterbrate, vetebrate, plant, protist, fungi, bacteria ~narrow host range ~specific host

5. classification

using International Commities for Taxonomy o virus(ICTV) ~ nucleic acid type ~ nucleic acid strandedness ~the sense (+ve/-ve) of ssRNA ~presence?absence of envelope ~type of host

6. morphology

~helical viruses ~polyhedral viruses ~enveloped viruses ~complex viruses

1.general characteristic

~smaller than bacteria ~must have host to survive ~contain a single nucleic acid ~contain a protein coat