Botany
online
1996-2004. No further update, only
historical document of botanical science
!
Left-handed and Right-handed Helix
Picture to the left:
Demonstrated on the antlers of a kudu
(from C. DARWIN: The descent of man, 1871)
Picture to the right:
right-handes
alpha
-helix
© Peter v. Sengbusch -
Impressum