freezing sperm & ova

[Jean Edwards]

Good morning all:   Three questions for which I've been unable to find answers:   1. How long can sperm remain frozen without comprising viability? 2. Can ova be frozen and again, for how long without comprising viability? 3. Finally, one of my students was talking with me about the thawing of the "ice man" who is estimated to be about 5000 years old. She was wondering if his sperm were retrieved and thawed and fertilized with an ova, would fertilization be possible and what would the brain be like? I told her that to the best of my knowledge, the brain had not changed that much in the last 5000 years and that I didn't know how long sperm could be frozen.   Thanks in advance for any info!     JL Edwards [EMAIL PROTECTED]