A single elevated ESR, without any symptoms of a specific disease, will usually not give enough information to make a medical decision. Furthermore, a normal result does not rule out inflammation or disease. Moderately elevated ESR occurs with inflammation but also with anemia, infection, pregnancy, and with aging.
Between 65 and 81 percent of people can curl their tongues, and slightly more women than men can do it, studies find. The notion that a person's ability to roll his or her tongue is determined by a single dominant gene stems from a paper published in 1940 by geneticist Alfred Sturtevant.
June 10, 2005. Yes, two parents who can't roll their tongues can have a child who can. And it may be more common than we think. Many of our teachers used tongue rolling as a simple example to teach the idea of dominant and recessive genes. The lesson probably went something like this: