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Discussion

GATE preparation for Life Sciences
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Louis Pasteur used swan-neck flasks and meat broth in these flasks, and boiled them for several hours. The flask remained free of microbial contamination for months. After several months, when he broke the neck of one of the flasks, contamination by air and proliferation of microorganisms in the fluid occurred. This experiment disproved the concept of (theories of evolution)

 
spontaneous generation
biogenesis
panspermia
None of these

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Deblina Hota

Ans option is incorrect. explanation is correct