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DNA

Thaumatophyllum bipinnatifidum leaf
botany

DNA Analysis Reveals a Genus of Plants Hiding in Plain Sight

Gene-sequence data is changing the way that botanists think about their classification schemes. A recent name-change for a common houseplant resulted from the discovery that it belonged in an overlooked genus.

Photo of an axolotl
developmental biology

Salamander’s Genome Guards Secrets of Limb Regrowth

With a fully sequenced genome in hand, scientists hope they are finally poised to learn how axolotls regenerate lost body parts.

Illustration for "Theory Suggests That All Genes Affect Every Complex Trait"
genomics

Theory Suggests That All Genes Affect Every Complex Trait

The more closely geneticists look at complex traits and diseases, the harder it gets to find active genes that don’t play some part in them.

Illustration for "How the DNA Computer Program Makes You and Me"
insights puzzle

Solution: ‘The DNA Computer Program’

Computer code serves as a useful analogy for what our genes do, but the complexity and messiness of life go well beyond simple analogies and mathematical models.

Illustration for "How the DNA Computer Program Makes You and Me"
insights puzzle

How the DNA Computer Program Makes You and Me

Can a set of simple instructions produce complex, three-dimensional living structures?

520px illustration of genome packaging
genomics

How Cells Pack Tangled DNA Into Neat Chromosomes

For the first time, researchers see how proteins grab loops of DNA and bundle them for cell division. The discovery also hints at how the genome folds to regulate gene expression.

Birds and mitonuclear conflict
evolution

Genetic Struggles Within Cells May Create New Species

Mitonuclear conflict — a struggle between the genes in a cell’s nucleus and its mitochondria — might sometimes split species in two.

Modern humans (at left) and Neanderthals (right)
evolution

Genetics Spills Secrets From Neanderthals’ Lost History

How many Neanderthals were there? Archaeology and genetics have given very different answers. A new study reconciles them and reveals the lost history of these ancient people — including an early brush with extinction.

genomics

Genetic Architects Untwist DNA’s Turns

Researchers have used the gene-editing tool CRISPR to manipulate the way that DNA coils up inside the cell — another step in the quest to understand how the genome’s 3-D structure impacts its function.