A taste for alcohol may be more widespread in the primate lineage than suspected, and is linked to genetic factors, a new study suggests.
Genes are the blueprints of life. Genes control everything from hair color to blood sugar by telling cells which proteins to make, how much, when, and where. Genes exist in most cells. Inside a cell is a long strand of the chemical DNA (deoxyribonucleic acid). A DNA sequence is a specific lineup of chemical base pairs along its strand. The part of DNA that determines what protein to produce and when, is called a gene.
First established in 1985 by Sir Alec Jeffreys, DNA testing has become an increasingly popular method of identification and research. The applications of DNA testing, or DNA fingerprinting within forensic science is often what most people think of when they hear the phrase. Popularized by television and cinema, using DNA to match blood, hair or saliva to criminals is one purpose of testing DNA. It is also frequently used for other benefits, like wildlife studies, paternity testing, body identification, and in studies pertaining to human dispersion.While most aspects of DNA are identical in samples from all human beings, concentrating on identifying patterns called microsatellites reveals qualities specific and unique to the individual. During the early stages of this science, a DNA test was performed using an analysis called restriction fragment length polymorphism. Because this process was extremely time consuming and required a great deal of DNA, new methods like polymerase chain reaction and amplified fragment length polymorphism have been employed.The benefits of DNA testing are ample. In 1987, Colin Pitchfork became the first criminal to be caught as a result of DNA testing. The information provided with DNA tests has also helped wrongfully incarcerated people like Gary Dotson and Dennis Halstead reclaim their freedom.
Mouse lemurs, the world's tiniest — and perhaps cutest — primate, have helped solve a whodunit about who (or what) disrupted the green forests on the island nation of Madagascar.
Genetics may play a role in student performance but a child's environment can also influence school achievement.
Labrador retrievers are more inclined than other dog breeds to care about food — and the reason lies in their DNA.
The origins of a man who lived some 8,500 years ago, and whose skeleton was discovered in 1996 in Kennewick, Washington, have finally been pinned down.
The age at which people first have sex is largely influenced by social factors, but genes play a role too.
King Tut is the only 18th Dynasty pharaoh whose mummy has been identified with certainty, says a new analysis.
Researchers have identified a gene that increases the risk of schizophrenia, and they say they have a plausible theory as to how this gene may cause the devastating mental illness.
The beetle mimic cockroach gives live birth, and one researcher from the University of Cincinnati figured out what was happening on the genetic level.
Mutations are alterations to a DNA sequence. They can cause diseases and conditions, but they are also tools in evolution.
You can now buy scarves featuring designs based on your unique DNA sequence, making these items among the most personalized gifts ever made.
Diamonds may be forever, but what's more unique and rare than even the most precious stones on Earth? The code of life.