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What is Difference bet ween H37Rv and H37Ra?
H37Rv and H37Ra are both strains of M. tuberculosis representing virulent (Rv) and avirulent (Ra) strains.
What did Avery's theory provide evidence for?
Ostwald T. Avery's experiment was an extension of the works of Griffith's. Griffith's experiment using virulent and avirulent Streptococcus pneumoniae (which had different colony characteristics) proved that it was possible for the heat killed virulent Streptococcus pneumoniae to pass on the genetic information for formation of smooth colonies to avirulent strains. Avery, Mc Leod and Mc Carty conclusively found out that the genetic material responsible for transfer of characteristics between the strains was DNA. This was achieved by incubating the cell lysate of virulent Streptococcus with proteases, RNAses and DNAses separately before mixing it with avirulent strains. It was found that only when the lysate was incubated with DNAses did the transfer of smooth colony formation characteristic from the virulent strain to the avirulent strain fail to occur.
What is the difference between a temperature and virulent virus?
A virulent virus is a virus that has severe symptoms and is usually a dangerous disease. A temperate virus is a less violent sickness that may show little to no symptoms.
What is an avirulent pathogen?
An 'avirulent' pathogen is a pathogen which is not virulent.This is similar to 'atypical' which means 'not typical'
What is a virulent phages?
phages of virulent.
How would use virulent be used in a sentence?
this bacteria is virulent strain
What does anti virulent mean?
Virulent means very posinous or dangerous.
A sharp criticism can be made with an remark?
virulent
Can you use Virulent in a sentence?
he came down with a virulent type of disease
How could you use the word virulent in a sentence?
Smallpox is a virulent disease.
How would you use the word virulent in a sentence?
Virulent means actively poisonous. You could use it in a sentence as, "the man had a virulent snake bite."
Can you give a sentence for the word virulent?
The judge had a virulent criticism after his affair with the intern.
