Correct Answer: Option A
Explanation:
Lactobacillus species convert lactose (milk sugar) into lactic acid, which lowers the pH and causes milk protein casein to coagulate, forming curd. This fermentation process also gives curd its characteristic sour taste. S. pneumoniae causes pneumonia, Salmonella typhi typhoid, Clostridium botulinum botulism. Lactobacillus is also a probiotic.
This question belongs to:
Science
Biology
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