Worms' sex life yields advantage over parasites
Worms forced to reproduce asexually succumbed to a nasty bacterial infection and died. The researchers say the results are the most convincing evidence to date for a key theory in evolutionary biology. The theory holds that sex evolved because it lets organisms reshuffle their genes into new combinations to stay a step ahead of parasites.
2011-07-08
worm sex reproduction evolution asexual cloning biology parasite resistance
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