一 | Mosquitoes use the body odor, heat, and carbon dioxide that humans emit, varying from person to person, to find their next meal. The study, which was published in the scientific journal Cell, reveals that mosquitoes may perceive odors via a variety of distinct pathways, in contrast to animals, which have a single set of neurons that detect each sort of odor.,Female mosquitoes use the variety of odors that people and other animals produce to find the blood that will feed their eggs. The olfactory neurons in the insects' antennae, which are where they take up scents, detect and send scent information to the brain.,Groups of human-odor receptors on the olfactory neurons in the antennae of female mosquitoes (Aedes aegypti) were rendered inactive by the study's lead author Meg Younger and her colleagues at Boston University in Massachusetts using the gene editing tool CRISPR.,"We found that there’s a real difference in the way mosquitoes encode the odors that they encounter compared to what we’ve learned from other animals,” Younger is quoted as saying in the Guardian report on the findings.,According to Younger, the scientists believed that mosquitoes would adhere to the core tenet of olfaction, which states that each neuron expresses only one type of receptor.,“Instead, what we’ve seen is that different receptors can respond to different odors in the same neuron," she added.,This reportedly suggests that mosquitoes can still detect human odors after losing one or more receptors. The researchers asserted that this backup system may have developed as a survival mechanism.,"The mosquito Aedes aegypti is specialized to bite humans, and it is believed that they evolved to do that because humans are always close to fresh water and mosquitoes lay their eggs in fresh water. We are basically the perfect meal, so the drive to find humans is extremely strong," Younger explained,In the end, the researchers argued, knowing how the mosquito brain perceives human odor could be used to influence biting behavior and stop the spread of diseases like malaria, dengue fever, and yellow fever that are transmitted by those insects.,"One major strategy for controlling mosquitoes is to attract them to traps to remove them from the biting population. If we could use this knowledge to understand how human odor is represented in the mosquito antennae and brain, we could develop blends that are more attractive to mosquitoes than we are. We could also develop repellants that target those receptors and neurons that detect human odor," Younger concluded.,Notably, Christopher Potter at Johns Hopkins School of Medicine in Maryland recently found a similar phenomenon in fruit flies, or Drosophila melanogaster.,“If one of these types of olfactory receptors is mutated or no longer functioning, there’s this backup system," Potter is quoted as saying in the New Scientist report. “It’s changing the dogma of what we thought we knew about the olfactory system.”,Science & TechSmell of Blood: Mosquitoes' Scent-Based Host-Seeking Mechanism Revealed16 May, 05:54 GMT。 Veteran actor Dharmendra, one of the most beloved and celebrated figures in Hindi cinema, passed away earlier this morning. The legendary star, often referred to as the He-Man of Bollywood, was 89 years old. He breathed his last at his residence in Mumbai. Dharmendra had been admitted to Breach Candy Hospital earlier this month due to respiratory complications. His passing has left a massive void in the hearts of his family, colleagues, and countless fans across the country. As condolences poured in from all corners of the industry, Ananya Panday took to her Instagram stories to mourn the demise of the icon. Her tribute was a series of personal throwback pictures, highlighting Dharmendra’s close connection with the Panday family over the years. In her first Instagram story, Ananya shared a collage of Dharmendra's black and white photographs from his younger acting days. The images perfectly showed the charm and handsome persona that made him a superstar. Ananya paid her respects with the caption: "The Greatest. Om Shanti." The second story was a truly special glimpse into the family's past. It featured wholesome pictures from the wedding celebration of Ananya's parents, Chunky Panday and Bhavana Panday. The photos show Dharmendra in attendance, posing happily with the newly married couple and family members. This image shows the strong personal bond and friendship that existed between Dharmendra and the Panday family, even beyond the film sets. It highlights the kind of lasting relationships Dharmendra maintained in the industry. Ananya also shared stills from her father Chunky Panday’s debut film, the 1987 action-drama Aag Hi Aag. Chunky had the privilege of sharing screen space with Dharmendra in his very first film. The pictures show the two actors together, looking energetic and full of promise. Ananya added a heartfelt note explaining the importance of this memory, "My father's first film and first ever shot on camera was with Dharam ji. Forever special, forever in our hearts."Also Read: Kartik Aaryan and Ananya Panday unveil the teaser of Tu Meri Main Tera Main Tera Tu Meri。
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