In article <30otu9$49g at scunix2.harvard.edu>
mlevin at husc7.harvard.edu (Michael Levin) writes:
>> Are there any organs or tissues that are asymmetric about the body's
> left-right axis (as the human heart, for example) in Drosophila?
> I am interested in molecular markers (genes etc.) as well. Please
> reply to mlevin at husc7.harvard.edu.>> Mike Levin
I quote this from P. A. Lawrence's book "The Making of a Fly"
"...insects are remarkably bilaterally symmetric, there
appear to be no 'left' or 'right' genes. An example of bilateral
asymmetry is the genitalia of the male; as they develop they rotate -
always counterclockwise 180°. It is not known what gives direction to
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