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Question : 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

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mice develop DISEASE and die
mice die without DEVELOPING disease
mice do not develop disease and ALSO do not die
50% mice develop disease and die

Answer :A


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