Biological Classification Flashcards
The study of viruses
Virology
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
Lipids}. Carbohydrates}
Both from the host
Envelope is present in which all viruses
HIV,Herpes virus…..
An inert virus is called
Viron
The protein coat is made of subunits called as
Capsomeres
Viruses have which type of nuclei acid
It contains both RNA and DNA
DNA containing viruses are called
Deoxyviruses
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
ssRNA
Genetic material in zoophagineae /animal virus
ss or dsRNA OR dsDNA
How many capsomeres are arranged helically to form a capsid
2130
Which is the monomer of RNA
Nucleotides
ssRNA consists of _________ nucleotides.
6400
The ratio of nucleotides : capsomeres =
3:1
