It involves the study of the biomolecules present in saliva, both proteins, DNA and RNA, which offer a fairly complete view of the biology and genomics of a specific individual. According to David Wong, from the University of California, Los Angeles (USA), saliva has recently become a liquid as useful as blood to assess the health of an individual.
Australian scientists have carried out a study that determines that all the links in the DNA chain, preserved at the ideal temperature of 5 degrees Celsius, would be completely destroyed after 6.8 million years, which is incompatible with the idea of finding intact genetic material in a dinosaur fossil from 80 million years ago.
During pregnancy, some of the genetic material from the fetus passes into the mother's blood and can remain there for many years. A study published in the journal PLoS ONE indicates that women with DNA fragments from their male children in their brains are less likely to have Alzheimer's disease.
The Café Fortaleza company and the AZTI-Tecnalia technology center have teamed up to develop the Genetic Coffee Test, developing the first scientific method for authenticating the Arabica coffee variety through genetic analysis of green and roasted coffee beans, which allows you to check whether a commercialized coffee is made with this high quality variety or is mixed with the lower quality Robusta variety. The developed technique works on a new concept: the DNA of coffee.
An international scientific study reveals that the shape of the human face essentially depends on five genes. Monozygotic (identical) twins have almost the same face, and siblings tend to have faces more similar to each other than unrelated people. However, until now hardly anything was known about the genetics responsible for facial morphology in humans.
A team of Spanish researchers has obtained the genome of the melon, one of the species of greatest economic interest in the world. It is the first time that a Spanish public-private initiative has obtained a complete genome of a superior species of plants (they have flowers and produce seeds) and, in addition, they have done so using new massive sequencing technologies, which are cheaper and more efficient.
After three years of work and 750 attempts, Jerome Bonnet and his colleagues at Stanford University have developed a system to encode, store and erase digital data in the genetic material of living cells. In practical terms, they have created the genetic equivalent of a "bit", the smallest unit of digital information, with which two values, zero or one, off or on, can be represented.
Although a person's genetic code remains unchanged from birth, DNA molecules change a lot throughout life. And as Juleen Zierath of the Karolinska Institute has shown, one of the main drivers of these changes - called epigenetic changes - is physical exercise.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
