REVIEWER_INTRO TO MYCOVIRO Flashcards
viral particle that is functionally deficient
DEFECTIVE VIRUS
morphologic unit of the capsid
CAPSOMERE
repeating units of a capsid that are chemically composed of polypeptides
CAPSOMERE
virus = _______ in Latin
poison
T/F
Viruses are smaller than bacteria
TRUE
T/F
Viruses always require a host for survival
TRUE
T/F
Viruses are host cell specific organisms
TRUE
Viruses only infect certain cells if the cells have what?
receptors
a complete viral particle / unit of a virus
VIRION
a virion is typically composed of how many parts
2-3
- nucleic acid core, capsid, envelope*
T/F
It is necessary for a virus to be composed of at least 2 parts
TRUE
nucleic acid core (genome)
capsid
the genome of a virion is composed of _____?
DNA or RNA
protein coat of the viral particle
CAPSID
lipid rich component of the virion
ENVELOPE
types of virus according to presence of envelope
ENVELOPED
NAKED
Enveloped = ether \_\_\_\_\_\_\_\_ Naked = ether \_\_\_\_\_\_\_\_
E = ether labile N = ether stable/resistant
type of virus that are not destroyed by an organic solvent
NAKED
packaged form of the genome in a virus
NUCLEOCAPSID
composed of the genome surrounded by a capsid
NUCLEOCAPSID
nucleocapsids are mostly encountered in (DNA/RNA) viruses
RNA
because capsids are closely interconnected with the genome of RNA viruses
substance found in protein coat (capsid) and are also composed of proteins
PROTOMERS
protein spikes that are present on the surface of the envelope
used for attachment process of viral replication
PEPLOMERS
used by the virus to interact with the receptors found in the host cell
PEPLOMERS
a component that can be found in certain type of viruses such as HIV and Herpes virus and is found between the envelope and capsid; important in replication process of the virus
MATRIX PROTEIN
T/F
Viruses can have both RNA and DNA at the same time
FALSE
only either
diameter range of a virus
20-300 nm
T/F
Viruses contain only one copy of genome
TRUE
except Retroviruses (diploid virus)
T/F
Viruses can be single stranded or double stranded
TRUE
The genetic material arrangement of the virus can be:
linear
circular
segmented (fragmented or in pieces)
Segmented genome is countered only in what type of viruses
RNA. Never DNA.
