Disposable parts of plants mutate more quickly

Mutation rates are proposed to be a pragmatic balance struck between the harmful effects of mutations and the costs of suppressing them; this hypothesis predicts that longer-lived body parts and those that contribute to the ...

Duckweed: The low-down on a tiny plant

Duckweeds are a treat for many aquatic animals like ducks and snails, but for pond owners, they're sometimes a thorn in the side. The tiny and fast-growing plants are of great interest to researchers, not at least because ...

Human mutation rate has slowed recently

Researchers from Aarhus University, Denmark, and Copenhagen Zoo have discovered that the human mutation rate is significantly slower than for our closest primate relatives. This new knowledge may be important for estimates ...

Why haven't cancer cells undergone genetic meltdowns?

Cancer first develops as a single cell going rogue, with mutations that trigger aggressive growth at all costs to the health of the organism. But if cancer cells were accumulating harmful mutations faster than they could ...

Harmful genetic mutations may be less common than we thought

We are all mutants. Every characteristic that defines our species is the result of a genetic mutation somewhere in the history of evolution. And the same is true for every other organism on the planet. Yet more often than ...

page 1 from 4