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Bio 1500 - Test 7 Exam Questions And Answers
|Latest 2025 | Guaranteed Pass
Structure of viruses - Answer✔- RNA or DNA
- capsid (protein)
- no cellular machinery
optional: envelope (lipid bi-layer), protein receptors
Features by which viruses categorized - Answer✔- shape/size of capsid: spherical, head-tail,
helical
- absence/presence of an envelope
- type of genetic material (RNA or DNA, double or single stranded, positive or negative sense)
general steps of viral reproduction - Answer✔1. attachment (viral glycoproteins match with
receptor on cell)
2. entry (either whole thing enters or viral genome inserted)
3. replication & gene expression (viral genes direct cell machinery to make viral proteins)
4. assembly (viral proteins assembled into new virions)
5. release (either through the lysis of the cell or the individual virions pass through the cell
membrane and get an envelope)
features of coronaviruses - Answer✔- spherical
- envelope present
- positive sense RNA (straight up mRNA)
- most cause respiratory tract infections
- has spike proteins
- hundred of types
1|Page
Bio 1500 - Test 7 Exam Questions And Answers
|Latest 2025 | Guaranteed Pass
Structure of viruses - Answer✔- RNA or DNA
- capsid (protein)
- no cellular machinery
optional: envelope (lipid bi-layer), protein receptors
Features by which viruses categorized - Answer✔- shape/size of capsid: spherical, head-tail,
helical
- absence/presence of an envelope
- type of genetic material (RNA or DNA, double or single stranded, positive or negative sense)
general steps of viral reproduction - Answer✔1. attachment (viral glycoproteins match with
receptor on cell)
2. entry (either whole thing enters or viral genome inserted)
3. replication & gene expression (viral genes direct cell machinery to make viral proteins)
4. assembly (viral proteins assembled into new virions)
5. release (either through the lysis of the cell or the individual virions pass through the cell
membrane and get an envelope)
features of coronaviruses - Answer✔- spherical
- envelope present
- positive sense RNA (straight up mRNA)
- most cause respiratory tract infections
- has spike proteins
- hundred of types
1|Page
