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Latest Detlef Weigel Stories

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2010-06-03 07:38:06

Scientists from Tbingen reveal an evolutionary dilemma: plants that are more resistant to disease grow more slowly and are less competitive than susceptible relatives when enemies are rare Individuals of one and the same plant species often differ greatly in their ability to resist pathogens: While one rose succumbs to bacterial infection, its neighbor blissfully thrives. Scientists from the Max Planck Institute of Developmental Biology in Germany have tracked down an explanation for this...

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2010-01-01 11:38:35

US-German team measures how quickly genomes change Mutations are the raw material of evolution. Charles Darwin already recognized that evolution depends on heritable differences between individuals: those who are better adapted to the environment have better chances to pass on their genes to the next generation. A species can only evolve if the genome changes through new mutations, with the best new variants surviving the sieve of selection. Scientists at the Max Planck Institute for...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.