Woolly mammoths and Neanderthals may have shared genetic traits

A new Tel Aviv University study suggests that the genetic profiles of two extinct mammals with African ancestry—woolly mammoths, elephant-like animals that evolved in the arctic peninsula of Eurasia around 600,000 years ...

Science Says: Why scientists prize plant, animal genomes

Just about every week, it seems, scientists publish the unique DNA code of some creature or plant. Just in February, they published the genome for the strawberry, the paper mulberry tree, the great white shark and the Antarctic ...

Expansion of transposable elements offers clue to genetic paradox

Species often experience a genetic bottleneck that diminishes genetic variation after speciation or introduction into a new area. Though bottlenecks in population size always reduce fitness and evolutionary potential, introduced ...

Ancient DNA research shines spotlight on Iberia

The largest study to date of ancient DNA from the Iberian Peninsula (modern-day Portugal and Spain) offers new insights into the populations that lived in this region over the last 8,000 years. The most startling discovery ...

Climate-driven evolution in trees alters their ecosystems

A new study published in Global Change Biology and coauthored by researchers from UT, explores how climate, evolution, plants, and soils are linked. The research is the first to show how climate-driven evolution in tree populations ...

Researchers complete genome of Antarctic blackfin icefish

An international team has unveiled the genome of the Antarctic blackfin icefish, opening a genetic window on fish that evolved over the last 77 million years to survive in temperatures below the freezing point of freshwater.

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Genetic variation

Genetic variation, variation in alleles of genes, occurs both within and among populations. Genetic variation is important because it provides the “raw material” for natural selection.

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