Victor Velculescu , a young assistant professor at Johns Hopkins University, reported at the annual meeting of the American Association for the Advancement of Science meeting in Boston this past weekend that his experiments indicate there are at least 70, 000 genes.

FORBES: Gene Mappers May Have Missed Half The Genes

Bear's subsequent experiments with mice with fragile X indicate that the brain makes too much of key proteins that prevent proper learning from occurring.

FORBES: Magazine Article