Griffith's experiment.

Griffith's experiment.

1. Morgan gave evidence that genes of the trails are present on the cromosomes

   • scientific´s world
     • got together what make genes and cromosomes
       • British was
         • handling he is pneumococcal strain
           • Griffith found
             • a factor helps transform one bacteria type in to other
               • for this experiment need introduced two types of pneumococcal
                 • Smooth strain denoted as "s" strain
                   • Has a smothouter surface around cell. the presence of this capsule makes the strain virulent or strongly infection to be precise
                     • Griffth´s work
                       • Injected a mouse with the "S" strain wich is the smooth strain of pneumococci- but a mouse died
                         • Injected another mouse a rough strain- mouse survived
                           • Third mouse was injected whit the "S" strain after bacteria heated killed
                             • Means
                               • He heated the "S" strain to extreme temperatures, wich killed the virulent strain and it made ineffective so injected a mouse survived
                                 • Griffith in the last part injected a mouse with the mixture of the bot rough strain and heat killed-smooth strain but the mouse did not survive
                                   • Concluded.
                                     • There was somethings "S" strain that was passed on. He recovered from the body on the mouse. he recovered live "S" strain
                                       • He confirmed that the "R" strain was transformed into virulent "S" strain. He named it "The transforming factor" as the tranformation principle. He predicted it cut be the genetic material
                                         • Griffith concluded his experiment the bacteria named strepcocos pneumoniae he transforms the avirulent strain to the virulent type
                                         • What did he do?He make a experiment with a mouse. He injected a mouse "S" strain and it died. He injected rough strain the mouse strain. What did hecould or couldn't prove?There was something from the "S" strain that passed on, also do you know what he recovered from the body on the mouse. He recovered live "S" strain.
                 • Rough strain denoted as "R" strain
                   • Absence of such smooth makes this strain avirulent, or non infecction. Its R strain avirulent. Absence capsule wich makes it susceptible to the immune of the hot´s body