Structure of Viruses

Viral Morphology Viruses of all shapes and sizes consist of a nucleic acid core, an outer protein coating or capsid, and sometimes an outer envelope. Learning Objectives Describe the relationship between the viral genome, capsid, and envelope Key Takeaways Key Points Viruses are classified into four groups based on shape: filamentous, isometric (or icosahedral), enveloped, … Continue reading Structure of Viruses