gene development

William Crymes wbcrymes at mail.biol.sc.edu
Mon Mar 15 10:32:48 EST 1999


Kirk-
  I think most developmentally altered genes are the effect of
differential transcription.  Such that type "A" gene is transcribed
during embryogenesis and type "B" gene is transcribed later.  Look up
fetal hemoglobin vs. adult hemoglobin.  The one set of genes that are
extensively altered are the genes of the immune system.  The gene the
make-up the antibodies in the immune system are hyper-variable, though
they vary not as a result of development but as a result of exposure to
different antigens.
Bill
-- 
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William B. Crymes, Jr.
University of South Carolina
Department of Biological Sciences
700 Sumter Street
Columbia, South Carolina 29201
Phone: (803)777-7105
Fax: (803)777-4002
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