Related topics: cells · protein · dna · genetic material · dna sequences

Oldest DNA reveals life in Greenland two million years ago

Scientists discovered the oldest known DNA and used it to reveal what life was like 2 million years ago in the northern tip of Greenland. Today, it's a barren Arctic desert, but back then it was a lush landscape of trees ...

Can algae unlock the secrets of photosynthesis?

A team led by current and former Carnegie plant biologists has undertaken the largest ever functional genomic study of a photosynthetic organism. Their work, published in Nature Genetics, could inform strategies for improving ...

Bioinformatician presents the first map of the microverse

What defines the habitat—the ecological niche—of a microorganism? It is a combination of environmental factors such as temperature, moisture, and nutrient content. But the exact contribution of each of these factors is ...

'Bilingual' molecule connects two basic codes for life

The nucleic acids of DNA encode genetic information, while the amino acids of proteins contain the code to turn that information into structures and functions. Together, they provide the two fundamental codes underlying all ...

DNA double helix measurements

Researchers at the National Physical Laboratory (NPL) and the London Centre for Nanotechnology (LCN) have determined the structure of DNA from measurements on a single molecule using atomic force microscopy (AFM), and found ...

'Cowcatcher' enzyme fixes single-strand DNA

Every time one of your cells divides, it exposes its most essential component to great danger: its genome, the sum total of all its genetic information, embodied in the double-stranded helix of DNA. Prior to cell division, ...

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