REF:Genetics project for science class

["Linda S. Young" <lsyoung@MAILBOX.SYR.EDU>]

Several of our science teachers are working on a new project to use for
teaching genetics to their middle school students.  The students are
gathering data about  various characteristics like right or left
footedness, whether earlobes are attached or unattatched at the bottom,
and whether they are able to roll their tongues. The teachers are looking
for some source of data on the population in general; i.e. what
percentage of the population is left footed, has attached vs. unattached
earlobes, etc.

Does anyone know if this data exists, and where it might be found?
Thanks in advance for your help!

Linda Young
Hannibal High School
Hannibal, New York