The uptake of DNA during transformation is an active, energy requiring process.
Reason: Transformation
occurs in only those bacteria, which possess the enzymatic machinery
involved in the active uptake and recombination.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Transformation does not involve passive entry of DNA molecules through
permeable cell walls and membranes. It does not occur 'naturally' in all
species of bacteria, only in those species possessing the
enzymatic machinery are involved in the active uptake and recombination
processes. Even in these species, all cells in a given population are
not capable of active uptake of DNA. Only competent cells, which possess
a so called competence factor are capable of serving as recipients in
transformation.
So, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.