Intro To Virology Flashcards
Who discovered and coined the term “virus”?
Martinus Beijerink
“Virus” is the latin word for _____
Poison
Virus size ranges from _____ to _____
20 to 400 nm
The complete virus particle is termed as ______
Virion
Virus envelopes are made out of what?
Protein capsid and lipoproteins
Parts of a virion (from outer to inner)
Envelope
Capsid
Capsomere
Nucleic acid core
The nucleic acid core of a virion is composed of what?
Either DNA or RNA
What is the protein shell that encloses the nucleic acid genome?
Capsid
Protein that is present in a viral envelope
E protein
Glycoproteins that are exposed on the surface of the viral envelope
S glycoproteins
Protein present on the nucleocaspid
N protein
A viral matrix/membrane protein called viral tegument in rhabdoviruses
M protein
The organization responsible for virus taxonomy
International Committee on Taxonomy of Viruses
What are the classifications of viruses according to the Baltimore Classification?
dsDNA viruses
Class 1
What are the classifications of viruses according to the Baltimore Classification
-ssRNA viruses
Class 5
What are the classifications of viruses according to the Baltimore Classification
dsRNA viruses
Class 3
dsDNA viruses depends on _____ to synthesize new DNA strands for multiplication
DNA polymerase
dsDNA viruses integrates itself into the host cell with the help of what enzyme?
Integrase
Positive sense ssRNA’s genetic material
Viral mRNA
What is the genetic material that the negative sense ssRNA uses?
Antisense strand of the viral mRNA
All DNA viruses are double stranded except _____
Parvoviruses
All DNA viruses are icosahedral except _____
Poxviruses
Most DNA viruses are naked except:
Herpesvirus
Hepatitis B virus
Poxvirus
All RNA viruses replicates in the cytoplasm except:
Orthomyxoviruses
Retroviruses
