منابع مشابه
How many ways are there to generate small RNAs?
In this issue of Molecular Cell, Lee et al. show that Neuropsora crassa uses several Dicer-dependent and -independent pathways to generate miRNA-like RNAs and small-interfering RNAs. Their studies expand the known small RNA biogenesis pathways and suggest the existence of others that are yet to be discovered.
متن کاملThere are many ways to train a fly.
A biological understanding of memory remains one of the great quests of neuroscience. For over 30 years the fruit fly Drosophila melanogaster has primarily been viewed as an excellent vehicle to find 'memory genes'. However, the recent advent of sophisticated genetic tools to manipulate neural activity has meant that these genes can now be viewed within the context of functioning neural circuit...
متن کاملHow many tastes are there?
How many basic tastes are there? Most people list four: sweet, sour, salty and bitter. Those with a background in the chemosensory sciences usually add a fifth, umami. But why stop there? There is growing evidence that there are more—perhaps many more. The idea that there are four basic tastes goes back at least as far as ancient Greece, so if there are more than four basic tastes why haven't t...
متن کاملHow many species are there?
'How many species are there' is a question receiving more attention from biologists and reasons for this are suggested. Different methods of answering this question are examined and include: counting all species; extrapolations from known faunas and regions; extrapolations from samples; methods using ecological models; censusing taxonomists' views. Most of these methods indicate that global tot...
متن کاملHow many words are there?
The commonsensical assumption that any language has only finitely many words is shown to be false by a combination of formal and empirical arguments. Zipf's Law and related formulas are investigated and a more complex model is offered.
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ژورنال
عنوان ژورنال: Journal of Research in Interprofessional Practice and Education
سال: 2011
ISSN: 1916-7342
DOI: 10.22230/jripe.2011v2n1a81