Biologists from Columbia University presented findings that explain why Aedes aegypti mosquitoes more actively bite people in the morning and evening periods. The researchers carefully studied video recordings capturing the mosquitoes’ response to carbon dioxide. During dawn and dusk hours, the mosquitoes showed a stronger reaction to the same amounts of carbon dioxide. Subsequently, using the CRISPR-Cas9 gene editing technique, the team of specialists altered the gene controlling the mosquitoes’ internal biological rhythms.
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