home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: misc.rural
- Path: sparky!uunet!charon.amdahl.com!amdahl!rtech!decwrl!ames!elroy.jpl.nasa.gov!grian!steve
- From: steve@grian.cps.altadena.ca.us (Steve Mitchell)
- Subject: Re: Strange Idea
- Message-ID: <1993Jan27.195520.20307@grian.cps.altadena.ca.us>
- Organization: College Park Software, Altadena, CA
- References: <93Jan25.191655edt.4@smoke.cs.toronto.edu> <C1H1y9.87u@boi.hp.com>
- Distribution: na
- Date: Wed, 27 Jan 1993 19:55:20 GMT
- Lines: 35
-
- ahill@boi.hp.com (Andy Hill) writes:
-
- >Robert Frederick Enenkel (enenkel@cs.toronto.edu) wrote:
- >> Isn't that the only way to produce desired traits in any animal?
- >> (Except, I suppose, by doing strange things to the DNA using radiation...)
- >>
- >Even then, you'd still have to select for the desired traits. Radiating the
- >gametes would just increase the number of available mutations. Also, there
- >is some gene-splicing work going on, although the only practical applications
- >that I'm familiar with involve bacteria. Hold onto your seats, 'though,
- >gene-spliced mammals probably aren't too far off.
-
- Actually, gene-spliced mammals are already here. In fact, several
- strains of "transgenetic" beasties (mainly lab mice) have already been
- patented. Bashing on the genes with radiation is an old-fashioned,
- crude method for increasing the number of available mutations, which
- you then use in traditional selective breeding. Nowadays, we splice
- the desired genes into harmless a virus, infect the target animal, and
- the virus splices the desired gene into the DNA of the target. Using
- this technology, the genetic engineers are using various bacteria to
- produce commercial quantities of previously prohibitively-expensive
- hormones and various other proteins. They've also created mice with
- partly human immunosystems (ideal for lab work on human auto-immune
- diseases), as well as animal models of various human genetic
- disorders. Various crops are being engineered with desirable traits
- (salt resistance for irrigated fields, tomatoes which can be picked
- ripe and transported with minimal bruising, etc). There's even a
- group working on milk cows which produce drugs in their milk.
-
- It's a brave new world out there...
- --
-
- - Steve Mitchell
- College Park Software steve@cps.altadena.ca.us
- 461 W. Loma Alta Dr. 818-791-9153 (voice)
-