The difference between "walking pneumonia" and "true pneumonia".
To find out, he took a culture of these cells, heated the bacteria to kill them, and injected the heat-killed bacteria into the mice.
The difference between "walking pneumonia" and "true pneumonia".
Vigaiyna :p
What did griffith observe when he injected into mice a mixture of heat-killed disease-causing bacteria and live harmless bacteria?
Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form.
Transformation
Griffith
To find out, he took a culture of these cells, heated the bacteria to kill them, and injected the heat-killed bacteria into the mice.
To find out, he took a culture of these cells, heated the bacteria to kill them, and injected the heat-killed bacteria into the mice.
To find out, he took a culture of these cells, heated the bacteria to kill them, and injected the heat-killed bacteria into the mice.
The harmless living bacteria took in pneumonia-causing DNA(genes) from the heat-killed, pneumonia-causing bacteria, as a result of which the harmless bacteria changed into bacteria that cause pneumonia.
The difference between "walking pneumonia" and "true pneumonia".
Heat denatures the lethal pneumonia bacteria's proteins or enzymes causing them to become ineffective. Therefore, without the bacteria's proteins or enzymes functioning correctly, the lethal pneumonia bacteria die.
Griffith was trying to show the transformation of DNA in his experiment where DNA was transfered enabling the viable cell of bacteria to non- viable.
He worked with pneumococci, the bacteria that causes pneumonia.
To find out, he took a culture of these cells, heated the bacteria to kill them, and injected the heat-killed bacteria into the mice.
To find out, he took a culture of these cells, heated the bacteria to kill them, and injected the heat-killed bacteria into the mice.
Griffith wanted to learn how certain types of bacteria produce a serious lung disease know as pneumonia.
Frederick Griffith introduced the Griffith experiment in 1928. This experiment proved that bacteria can carry genetic information through a process called transformation.