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Tag: "twins" at biology news

Identical twins may have more differences than meet the eye

Identical twins lose some fundamental similarities as they grow older, a new study reports. . .. .. Scientists think that chemical exposure, dietary h...

UCLA scientists discover immune response to HIV differs, even in identical twins

In findings illustrating the difficulty of developing an AIDS vaccine, UCLA AIDS Institute researchers report the immune systems in two HIV-positive identical twins responded to the infection in different ways. . .. The researchers followed the cases of male twins who were infected shortly after their 1983 births in Los Angeles by blood transfusions admi...

How can identical twins be genetically different?

They sleep together, eat together, and most people find it impossible to tell them apart. Identical twins who grow up together share just about everything, including their genes. But sometimes only one twin will have health problems when genetics predicts both of them should. . .. U-M researchers have discovered three genes that are over-expressed in rheuma...

Study finds that a woman's chances of having twins can be modified by diet

An obstetrician well known for his care of and research into multiple-birth pregnancies has found that dietary changes can affect a woman's chances of having twins, and that her overall chance is determined by a combination of diet and heredity. By comparing the twinning rate of vegan women, who consume no animal products, with that of women who do eat animal products, Gary Steinman, MD, PhD, an...