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PICS: Mosquito-free world in near future!

Controlling malaria menace by wiping out mosquito population

As a result, almost no functioning sperm carried the X chromosome, which determines female offspring. Instead, most sperm carried the Y chromosome, which produces males. The modified mosquitoes were put to the test in five cages, each containing 50 genetically modified males and 50 normal, wild females. In four of the five cages, the entire population was wiped out within six generations because of the progressively greater shortage of females.