To suppose that earth is the only populated world in infinite space is as absurd as to believe that in an entire field sown with millet, only one grain will grow.
Metrodorus of Chios
4th century B.C.
Mesopotamian “Tree of Life”
The human genome is comprised of two sets of 23 chromosomes – 46 chromosomes in all. Each parent contributes a set. About 97 percent of the genome consists of sequences that don’t code for proteins and have no known function. Within the rest of the genome are estimated 70,000 genes.
