©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
BMS 602 Virology Exam Questions and
Answers 100% Solved | Graded A+
What is the progressive hypothesis? - ✔✔Mobile genetic material moved
throughout the genome and gained the ability to exit one cell and move to
another
What is the regressive hypothesis? - ✔✔Viruses originated from more
complex organisms and evolved to lose genetic information but adopted a
parasitic approach to replication
What is the virus first hypothesis? - ✔✔viruses may have been the first self-
replicating entities before the first cells and complexity in evolution led to
evolution of the first cells
What is the panspermia hypothesis? - ✔✔Viruses are from space
What is the difference between a naked virus and an enveloped virus? -
✔✔Naked viruses are the genome in a capsid protein coat and enveloped
viruses have that plus a plasma membrane that facilitates viral entry
What is a bacteriophage? - ✔✔A non-enveloped (naked) virus that infects
bacteria
, ©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
What is a viroid? - ✔✔Infectious pieces of naked RNA that only infect
plants
What is the purpose of viral matrix proteins? - ✔✔They are important for
assembly of enveloped viruses and link the viral envelope to the viral
nucleocapsid
What is the gag gene? - ✔✔Capsid protein gene on retrovirus genome
What is the pol gene? - ✔✔Polymerase protein gene on retrovirus genome
What is the env gene? - ✔✔Envelope protein gene on retrovirus genome
Which of the following proteins is NOT encoded for by the viral genome?
a) capsid
b) envelope proteins
c) polymerases not found in host cell
d) ribosome - ✔✔d) ribosomes are NOT encoded for by any viruses
What type of mRNA is required for viral proteins to be synthesized? - ✔✔+
sense ssRNA
What genomes do classes 1 (Adenovirus) and 7 have (HepB and Phage
T4)? - ✔✔dsDNA. Transcription of minus strand = +ssRNA
Class 7 is DNA retroviruses
BMS 602 Virology Exam Questions and
Answers 100% Solved | Graded A+
What is the progressive hypothesis? - ✔✔Mobile genetic material moved
throughout the genome and gained the ability to exit one cell and move to
another
What is the regressive hypothesis? - ✔✔Viruses originated from more
complex organisms and evolved to lose genetic information but adopted a
parasitic approach to replication
What is the virus first hypothesis? - ✔✔viruses may have been the first self-
replicating entities before the first cells and complexity in evolution led to
evolution of the first cells
What is the panspermia hypothesis? - ✔✔Viruses are from space
What is the difference between a naked virus and an enveloped virus? -
✔✔Naked viruses are the genome in a capsid protein coat and enveloped
viruses have that plus a plasma membrane that facilitates viral entry
What is a bacteriophage? - ✔✔A non-enveloped (naked) virus that infects
bacteria
, ©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
What is a viroid? - ✔✔Infectious pieces of naked RNA that only infect
plants
What is the purpose of viral matrix proteins? - ✔✔They are important for
assembly of enveloped viruses and link the viral envelope to the viral
nucleocapsid
What is the gag gene? - ✔✔Capsid protein gene on retrovirus genome
What is the pol gene? - ✔✔Polymerase protein gene on retrovirus genome
What is the env gene? - ✔✔Envelope protein gene on retrovirus genome
Which of the following proteins is NOT encoded for by the viral genome?
a) capsid
b) envelope proteins
c) polymerases not found in host cell
d) ribosome - ✔✔d) ribosomes are NOT encoded for by any viruses
What type of mRNA is required for viral proteins to be synthesized? - ✔✔+
sense ssRNA
What genomes do classes 1 (Adenovirus) and 7 have (HepB and Phage
T4)? - ✔✔dsDNA. Transcription of minus strand = +ssRNA
Class 7 is DNA retroviruses
