NEETBotanyPlant - Growth and Development
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): 2,4 -D selectively eliminates mature monocotyledonous plants without affecting dicotyledonous weeds. Reason (R): 2,4 -D is a synthetic auxin extensively used by gardeners to prepare weed-free lawns. In the light of the above statements, choose the most appropriate answer from the options given belo
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct but (R) is not the correct explanation of (A)
- C(A) is correct but (R) is not correct
- D(A) is not correct but (R) is correct
Correct answer
D. (A) is not correct but (R) is correct
Step-by-step solution
Assertion (A) is incorrect because 2,4 -D ( 2,4 -dichlorophenoxyacetic acid) is widely used to kill dicotyledonous weeds and does not affect mature monocotyledonous plants. Reason (R) is correct as 2,4 -D is indeed a synthetic auxin that is extensively used by gardeners to prepare weed-free lawns by selectively eliminating dicot weeds. Therefore, (A) is not correct but (R) is correct. Answer: (A) is not correct but (R) is correct