NEET Botany Molecular Basis of Inheritance Questions Solved

Fredrick Griffith accidentally discovered transformation when attempting to develop a vaccine for pneumonia. He injected mice with samples from S-strain (virulent) and/or R-strain (nonvirulent) pneumococci bacteria (Sterptococcus pneumoniae). Which of the following results is NOT consistent with Griffith's experiments?

(1) injected S-strain; mouse dies. 

(2) injected R-strain; mouse lives. 

(3) injected heat-killed S-strain; mouse lives. 

(4) injected mixture of heat-killed S-strain and live R-strain; mouse lives. 

(4) Read page 100, XII NCERT

Difficulty Level:

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