Lichtman's most recent expos is of an o-t-c Bulletin Board company called DNA Medical Technologies, of Hiawatha, Iowa.

FORBES: Streetwalker: An optimist on the sidelines

This can clearly distinguish the four DNA letters, A, C, G and T.

ECONOMIST: Nanopores may lead the way to a new generation of sequencing

"The early collection of DNA prevents crime, " said William C.

NPR: Court Takes Up Question Of Arrestee DNA Sampling

Embedded in each set of 23 chromosomes are 3 billion base pairs of DNA, known by the letters A, T, C and G, for the chemical bases adenine, thymine, cytosine and guanine.

FORBES: On The Cover/Top Stories

The codons were written in a four-letter alphabet, A, C, G, T, that abbreviated the names of the chemicals of which DNA is made.

ECONOMIST: Genomics has not yet delivered the drugs, but it will

But Mello and Fire, working with worms called C. elegans, found that RNA could do a lot more than ferry notes from the DNA to the rest of the cell.

FORBES: Biotech Breakthrough Wins Nobel Prize