Exams › NEET › Biology

The most likely reason for the development of resistance against pesticides in insects damaging a crop is

1. random mutations
2. genetic recombination
3. directed mutations
4. acquired heritable changes

Correct answer: random mutations

Solution

Pesticides do not create resistance on purpose; they select for insects that already carry rare beneficial variants. Those variants arise through random mutations, which can make some insects survive and reproduce.

Related NEET Biology questions

• The most nearest prehistoric ancestor of present man may be
• Dryopithecus is considered to be
• Ancestors of colostomies are
• The concept that population tends to increase geometrically while food supply increases arithmetically was put forward by
• First life on earth was
• Embryological support for evolution was disapproved by

⚔️ Practice NEET Biology free + battle 1v1 →