Posted on 02/12/2005 6:38:38 PM PST by SunkenCiv
A team headed by Craig Pikaard, Ph, D., Washington University professor of biology in Arts & Sciences, has discovered a fourth kind of RNA polymerase found only in plants and speculated to have been a plant feature for more than 200 million years. RNA polymerase is an enzyme, or protein machine, essential for carrying out functions of cells and for expression of biological traits. It does its job by copying a template of DNA genetic information in order to make RNAs that encode proteins or that function directly in the cell... Pikaard and his collaborators discovered that Pol IV does not share in the duties of Pol I, II or III... Pikaard thinks that Pol IV helps make siRNAs that then direct DNA methylation to sequences matching the siRNAs.
(Excerpt) Read more at medicalnewstoday.com ...
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YEC INTREP
Horror of horrors, my ping list is down. I had to change the operating system in my computer and now it won't read the disk that the list is on. I do have recovery plans though.
wow! that's terrible! When you get it back, if you like, send out copies to yourself in durable email boxes that remain on server, or to willing volunteers. ;')
Was it just an OS reinstall/refresh, or a brand new OS?
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