Viewing entries tagged
DNA

Researchers discover that DNA naturally fluoresces

Researchers discover that DNA naturally fluoresces

Breaking a fundamental textbook belief, a new study suggests that DNA and RNA give off light, contrary to the current idea that it neither emits nor absorbs light. After shining visible light onto the molecules, they will fluoresce for about two hours. Why? Not sure yet, but the team of professors Vadim Backman, Hao Zhang, and Cheng Sun are eager to find out more.

Source: http://phys.org/news/2016-08-dna-naturally-fluoresces.html

Image Source: By Pixabay (http://pixabay.com) [CC0], via Wikimedia Commons

 

Desert elephants pass on knowledge—not mutations—to survive

Desert elephants pass on knowledge—not mutations—to survive

An elephant never forgets... to remember not to forget how to survive. The main idea here is that elephants of all breeds are quick adapters, so the species doesn't need to rely on gradual genetic mutations to prevent mass endangerment. After analyzing the DNA between Namibian desert elephants and African savannah elephants, researchers made the conclusions that elephants possess "high learning capabilities."

Source: http://phys.org/news/2016-08-elephants-knowledgenot-mutationsto-survive.html#jCp

Image Source: By Namibnat (http://www.flickr.com/photos/namibnat/4944955254/) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons