smickerm at cofc.edu
Thu Mar 5 13:21:09 EST 1998
Might it have to do with the size of the chromosomes (ie the total DNA bp
might be less in the yeast). If not this the yeast may have less exon DNA
than the fruit fly.
The complex processes involved in cell differenciation, cell-cell
recognition of a multicell organism would definately seem to require more
information (more meaningful DNA).
As for comparing organisms that are more similar I could see how specialized
theories would be required.
Zvi Lamm wrote in message <6d94dq$i9p$1 at news.huji.ac.il>...
>Ralf N. Breuker (Ralf.Breuker at rz.ruhr-uni-bochum.de) wrote:
>:>Aaron Hood schrieb in Nachricht <34EB9819.CD30ED31 at coffey.com>...
>:>>Can anyone tell me why a fruit fly has only 4 chromosomes and yeast has
>:>>13? You would think the fly is a more complex creature and therefore
>:>>needs more chromosomes. If you can help I would be grateful!
>:>On the other hand, not even total genome length and "complexity" of
>:>organisms is correlated. That is due to the fact, that non-coding or
>:>repetitatory sequences make a more or less great part of DNA mass.
>If I understand the problem correctly, we have yet to come up with any
>good measure of information/complexity of an organism. There are several
>alternatives (pure information theory; Algorithmic Information
>Theory;Energy use ~= information using Thermodynamic principles etc.), but
>none is currently suited to compare genome and organism complexity.
>This is a field which is currently studied by quite a few researchers.
>Actuall bionet.info-theory is a better place to ask. But be warned -
>you'll hear many opinions, much less facts...
>Ehud Lamm mslamm at pluto.mscc.huji.ac.il
More information about the Cellbiol