The outside face of the card shows an electron micrograph of a gene being heavily transcribed into RNA, an early and fundamental step of gene expression. Because of its shape, this is often referred to as a "Christmas Tree." The gree tint on the micrograph enhances this association.
The inside of the card explains:
The electron micrograph on the front documents the first step in gene expression. The DNA gene positioned vertically in the center is being transcribed into RNA by RNA polymerase enzymes. The polymerases that have traveled furthest down the gene have produced the longest RNA chains.
E-cards are easy. But some occasions call for more than a casual click. Send your greetings on a card composed of ultra-heavyweight card stock with personally-selected artwork. All cards are made in 24 hours and come with a white envelope, so even last minute sentiments feel extra-special.
All of Zazzle’s paper products are produced out of our brand new, state-of-the-art printing facility in San Jose, California. We use quite literally the most cutting-edge digital printing technologies in the world in order to offer the highest quality, greatest breadth of options, and fastest turnaround.
We're pretty proud to be manufacturing right in the heart of Silicon Valley and we hope you love our products as much as we love making them for you.