Question
Which of the following statement is/are true? Statement A: When a weed spp. is already resistance to a herbicide shows resistance to other herbicides of the same chemical class to which it had never been exposed or shows resistance to two or more herbicide due to a single resistance mechanism is called as cross-resistance. Statement B: Resistance through which a spp. shows resistance to herbicide of different chemical classes having a different mode of action is called multiple resistance.
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