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Re: EXON
> Date: Mon, 11 Dec 1995 23:10:25 -0800 (PST)
> From: Rich Graves <[email protected]>
> To: Scott Binkley <[email protected]>
> Cc: High Society List <[email protected]>
> Subject: Re: EXON
> On 11 Dec 1995, Scott Binkley wrote:
>
> > Could someone please explain to me what this "EXON" thing is??
>
> A nucleic acid chain (RNA or DNA) is composed of exons, which are
> "active" sequences of nucleotides that are expressed as polypeptides, and
> "introns," what is known as "junk DNA." Only about 2% of the 6 billion or
> so base pairs that make up the human genome are exons.
>
> (There is some controversy in molecular biology circles as to whether
> "junk DNA" is really "junk" just because it doesn't build proteins. It
> could perform a regulatory or "frame-check" function.)
Actually, I think that once the matter is further studied, scientists
will discover that the "junk DNA" is not junk, but inactive DNA,
waiting for a "trigger".