A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: C
Solution :
A bacterial cell such as Escherichia coil is easily cultured in an aqueous solution containing glucose and various inorganic ions. In this medium, at 37°C, the cell mass divides and doubles in about 60 minutes. The generation time can be reduced to 20 minutes if purines and pyrimidines as well as amino acids are added to the medium. E.coli is Gram ?ve bacteria as it gives negative result on treatment with gram strain.
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