What happed when heat killed S cells along with live R cells were injected into mice ?

Heat killed S- cells alongwith live R- cells of Diplococcus pneumoniae were injected in mice

Heat killed S- cells alongwith live R- cells of Diplococcus pneumoniae were injected in mice

Heat killed S- cells alongwith live R- cells of Diplococcus pneumoniae were injected in mice

A mixture of heat-killed NL cells (dead cells) and live L-cells is injected into mice. NL- type cells are pathogenic, develop a disease and kill the animals. On the other hand L-type cells are non-pathogenic. The expected result could be

A mixture of heat- killed NL-cells (dead cells) and live L- cells is injected into mice. NL- type cells are pathogenic, develop a disease and kill the animals. On the other hand L- type cells are nonpathogenic. The expected results could be :

First living cells were observed by

Living cells were discovered by

Living cells were discovered by