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- From: connolly@rabbit.cs.umass.edu (Christopher Ian Connolly)
- Newsgroups: sci.bio
- Subject: Re: MRNA
- Message-ID: <59102@dime.cs.umass.edu>
- Date: 25 Jan 93 18:27:28 GMT
- References: <59013@dime.cs.umass.edu> <C18Mop.3L2@iat.holonet.net> <106214@netnews.upenn.edu>
- Sender: news@dime.cs.umass.edu
- Organization: University of Massachusetts, Amherst
- Lines: 25
-
- In article <106214@netnews.upenn.edu> barkdoll@lepomis.psych.upenn.edu (Edwin Barkdoll) writes:
- > Perhaps Chris is making a distinction (or asking for a
- >distinction) between computational speed (throughput, total "bytes" of
- >information...) and diversity. Consider a cell which produces tons of
- >carbonic anhydrase, which if not the fastest enzyme known certainly
- >in the top 10, versus a cell which produces a highly diverse set of
- >enzymes which are very slow.
-
- Right - Or even the fact that reaction rates are temperature-dependent.
-
- >What if many redundant copies are produced such that the total number
- >of "bytes" far exceeds that in some other more diverse but pokey cell?
- >What's the information being measured?
-
- I had a problem with the word "bandwidth", which has a precise meaning
- in the context of signal processing, but seems vague when applied to
- DNA. The only thing that comes to my mind as a clearly quantifiable
- "bandwidth" is the rate at which purines and pyrimidines pass out of a
- nucleus. It doesn't seem like a terribly interesting quantity. It
- also ignores environmental factors.
- --
- - - - - - - -
- Christopher Ian Connolly connolly@cs.umass.edu
- Laboratory for Perceptual Robotics wa2ifi
- University of Massachusetts at Amherst Amherst, MA 01003
-