How many bases in a heical turn?

Billy Li billyli at
Tue Aug 15 01:08:54 EST 1995

Sorry for an easy question.  I have read from Kornberg that there are 10 bases
in a helical turn.  My supervisor insists that it is a bit more than 10, perhapseven 11.  My guess is that for different types of DNA (A, B and Z) the numbers
are slightly different.  Anyone has the exact numbers please.

Please email or post.

Thanks in advance.

Billy Li,  email: billyli at
Assistant Lecturer,
Department of Statistics,
University of Hong Kong.
Tel: (852) 28591987     Fax: (852) 28589041

More information about the Bioforum mailing list