5121. It is found recently that incidence of Malaria is increasing because
- A. with increase in population it has become impossible to mainatain cleanliness everywhere
- B. Of poor sanitary conditions
- C. The mosquitoes have become DDT-resistance
Check answer and explanation
Answer: The mosquitoes have become DDT-resistance
Explanation Answer:: D A single gene mutation results in resistance to DDT and pyrethroids, a class of pesticides used in bed nets. According to a new study in the journal Geno Mosquitoes (Anopheles funestus), Geno Mosquitoes (Anopheles funestus) is a malaria vector, and most strategies for controlling disease epidemics focus on controlling mosquito populations with pesticides. I'm guessing. The spread of resistance genes can delay efforts to prevent disease.