Telomerase, also called terminal transferase, is a ribonucleoprotein that adds a species-dependent telomere repeat sequence to the 3' end of telomeres. A telomere is a region of repetitive sequences at each end of a eukaryotic chromosomes in most eukaryotes.
There are two limits for tax-free gifts: an annual ceiling of $13,000 to any one person, and a separate $5 million lifetime limit. Compromise legislation passed in 2010 set the tax exemption limits and indexed them for inflation, but the legislation is due to expire at the end of 2012, so the limits could change.
An individual may gift $12,000 to another individual in a tax year without having to file a gift tax return. More than that, and the giver has to file a Form 709. This does not imply that any gift taxes will be collected, though. Right now, the lifetime gift tax exclusion is $1,000,000 per person.