A couple who used a fertility clinic to conceive was ready to sue when the child’s blood type didn’t match up with mom and dad’s. Obviously the clinic had used the wrong sperm or made some other awful mistake. Except in this case they probably hadn’t. The couple, whose case I worked on, gave me … Continue reading Powerful Genetic Test Prevents Paternity Mix-Up →
Until recently scientists have not been able to figure out the information coded in the folding of our DNA in the nucleus. A new map now makes this task simpler. This kind of map will not only tell us how the instructions in our DNA lead to making each one of us, but it may also provide new ways to understand and even treat diseases like cancer.
A new study confirms that at the DNA level, people in the U.S. are more similar than many might think. People who self identify as African-American, Latino or European-American very often have traces of one or both of the other ancestries in their DNA.
Until recently, you pretty much had to rely on family stories that were passed down through the generations to learn about your ancestors. But that is now set to change. With a little luck, a whole lot of science and genealogy, you may be able to use passed down DNA instead of stories to learn a bit about that great-great-great-grandfather.
In a stunning feat of scientific prowess, a large group of scientists has completely sequenced the genomes of 48 different bird species. But as sequencing gets easier, managing all of that data is turning out to be the real challenge.
Here in the U.S., if you want to get health information from your direct-to-consumer (DTC) genetic test, you need to use an online resource like Promethease. The same is no longer true in Canada and the U.K.
There is little doubt any more among the research community that sexual preference is a combination of both nature and nurture. In other words, it comes about because of both genes and the environment. The next questions to answer have more to do with how much each contributes and which genes and environmental factors are involved.
Scientists have identified Ebola-resistant and Ebola-sensitive mouse strains. Not only will the sensitive mice be useful as a relatively quick way to test new Ebola treatments, but by comparing its genetics to those of the resistant strains, scientists may find new ways to treat Ebola.
In a technological tour de force, a group of scientists have managed to read most of the DNA from the thigh bone of a 45,000 year-old-man. They were able to estimate that humans and Neanderthals bred in a major way 50,000-60,000 years ago and to confirm that the human mutation rate is a bit slower than scientists previously thought.
While many of the benefits of antioxidants are undoubtedly oversold, we do know that if given at high enough levels and targeted to the right place, antioxidants can help a mouse live 10-20% longer. If this holds up in people, that is equivalent to an extra 7-14 years for people here in the U.S.
According to a recent study, the public's distrust of scientists has gotten so bad that they are now on par with CEOs and lawyers. This loss of trust will almost certainly have profound implications for our future.
Direct-to-consumer (DTC) genetic tests are a fun way to learn about your family history, ancestry and maybe even a bit about your future health risks. But sometimes, they can also lead to unforeseen negative consequences.
Scientists recently fixed a broken gene in a fertilized mouse egg and prevented the mouse from getting an ultimately fatal form of muscular dystrophy. This study may one day translate into gene therapies that will treat and maybe even reverse certain effects of the disease.