NEET Biology question

The greatest threat to genetic diversity in agricultural crops is **[Manipal 2009]**

(A)Extensive use of insecticides and pesticides
(B)Extensive mixed cropping
(C)Introduction of high yielding varietiesCorrect
(D)Extensive use of fertilizers

Answer: (C)

Solution

Introducing high-yielding crop varieties on a large scale leads farmers to abandon diverse traditional/local strains in favour of a few uniform varieties, posing the greatest threat to genetic diversity in agricultural crops. Insecticide/pesticide use, mixed

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Question ID VK-129515