The Los Angeles Times (4/23, Kaplan) “Science Now” blog reports that research published in PLOS One suggests that “if mosquitoes are attracted to the scent of a particular person, they are likely to be attracted to her twin’s scent as well.” Meanwhile, “if they are repelled by someone’s odor, they’re likely to find her twin repellent, too.” The researchers “calculate[d] that 62% to 83% of a person’s degree of mosquito attractiveness is determined by DNA.”