VIRUSES

VIRUSES

1. ACELLULAR

2. NOT IN TAXONOMIC KINGDOM OF LIFE

3. MULTIPLY WHEN ENTER HOST CELL

4. NO NUTRIENT INTAKE

5. DO NOT GROW

6. REPLICATION

   • ATTACHMENT- TO HOST CELL
   • ENTRY- INTO HOST CELL
   • UNCOATING- EXPOSE VIRAL GENOME
   • TRANSLATION- OF VIRAL RNA- FORMATION OF PROTEINS & ENZYMES
   • REPLICATION- OF VIRAL GENOME
   • ASSEMBLY- OF NEW VIRAL PARTICLES
   • RELEASE- OF FULLY MATURE VIRIONS

7. VIRION

   • NUCLEIC ACID
   • CAPSID
     • PROTEIN COAT

8. GENETIC MATERIAL

   • RNA or DNA
   • LINE OR CIRCULAR
     • SINGLE STRANDED
     • DOUBLE STRANDED

9. ISOMETRIC

   • CAPSID IS GEOMETRIC POLYHEDRAL STRUCTURE
     • SURROUNDS NUCLEIC ACID

10. HELICAL

    • CAPSID FORMS COIL AROUND NUCLEIC ACID

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