Flashcards in Biological Classification Deck (37):
The study of viruses
Viruses are connecting link between
Living and non living things
Viruses can only reproduce by
Only within a living cell
Viruses can be killed by
Autoclaving and ultraviolet rays
Meaning of virus
Venom or poisonous fluid
D.J. Ivanowsky found virus by seeing microbes in the disease__________?
Disease- mosaic disease of tobacco.
M. W. Beijernick1898 called the extraction of the infected plant of tobacco as_____________
Contagium vivum fluidum
( infectious living fluid ).
Who crystallised TMV ( tobacco mosaic virus) for the first time.......
W. M. Stanley 1935
The outter most envelop of virus is made of
Proteins -from virus
Both from the host
Envelope is present in which all viruses
An inert virus is called
The protein coat is made of subunits called as
Viruses have which type of nuclei acid
It contains both RNA and DNA
DNA containing viruses are called
Double stranded DNA is found in
Pox virus ,cauliflower mosaic virus,herpes virus..
Single stranded DNAare present in
Colliphage X 174, M13 phage...
Double stranded RNA IS PRESENT IN
Reovirus, wound tumour virus..
Single stranded RNA IS PRESENT IN
TMV, Influenza virus, foot and mouth disease virus,retrovirus(HIV)...
The genetic material found in phytophagineae/plant viruses
Genetic material in zoophagineae /animal virus
ss or dsRNA OR dsDNA
How many capsomeres are arranged helically to form a capsid
Which is the monomer of RNA
ssRNA consists of _________ nucleotides.
The ratio of nucleotides : capsomeres =
The two types of reproduction in viruses are
Virulent virus reproduce by
Temperate viruses reproduce by
Casual agent causing AIDS
Causal agent causing mumps
The term virus was coined by
Viroids was discovered by
Viroids are with which type of genetic material
Infectious RNA. Particle
The diseases caused by viroids in plants are
Potato spindle tuber disease,chrysanthemum stunt and citrus exocortis..
Virusoids were discovered by
Virusoids are present in
Inside the capsid of the other large virus
Prions are discovered by