A Stanford University team is researching the role of genetic variation between human sperm and somatic (body) cells where the basis is currently unknown.

Eligibility:
Male between 18 and 89
Non-smoker
No previous cancer diagnosis
Live within 45 minute driving distance to CTRU (1070 Arastradero Road, Palo Alto, CA)

What you will do: Your contribution will consist of a single donation of sperm and blood.

What you will receive: $50 Safeway or Amazon gift card

For more information and to sign up, please visit https://snyderlabs.stanford.edu/geneticvariation/