Transposons are DNA sequences that move from one location on the genome to another, shuffling or duplicating. These elements were first identified more than five decades ago by Cold Spring Harbor Laboratory geneticist Barbara McClintock. For example, transposons make up approximately 50% of the human genome and up to 90% of the maize genome. In […]
Tag: DNA
Airborne DNA can now be used to detect rare and endangered species
The discovery of environmental DNA has altered the way environmentalists monitor biodiversity. Scientists can examine entire ecosystems or find unusual animals that are too elusive to trace using traditional methods by sequencing the genetic material contained in water and soil samples. Environmental DNA, or eDNA, has been utilized by teams to catalog everything from viruses […]
Bloodsucking flies help scientists identify rare, hard-to-find mammals
Last year scientists released a study that is likely to revolutionize how conservationists track elusive species. Researchers extracted the recently sucked blood of terrestrial leeches in Vietnam’s remote Annamite Mountains and looked at the DNA of what they’d been feeding on: remarkably researchers were able to identify a number of endangered and rarely-seen mammals. In […]