Startling Scientists, Plant Fixes Its Flawed Gene



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Topic: Religions > Atheism
User: "Tim Campbell"
Date: 10 Jun 2005 11:00:15 PM
Object: Startling Scientists, Plant Fixes Its Flawed Gene
Startling Scientists, Plant Fixes Its Flawed Gene
(Excerpts)
In a startling discovery, geneticists at Purdue University say they
have
found plants that possess a corrected version of a defective gene
inherited
from both their parents, as if some handy backup copy with the right
version
had been made in the grandparents' generation or earlier.
The finding implies that some organisms may contain a cryptic backup
copy of
their genome that bypasses the usual mechanisms of heredity. If
confirmed,
it would represent an unprecedented exception to the laws of
inheritance
discovered by Gregor Mendel in the 19th century. Equally surprising,
the
cryptic genome appears not to be made of DNA, the standard hereditary
material.
The discovery also raises interesting biological questions - including
whether it gets in the way of evolution, which depends on mutations
changing
an organism rather than being put right by a backup system.
"It looks like a marvelous discovery," said Dr. Elliott Meyerowitz, a
plant
geneticist at the California Institute of Technology. Dr. David Haig,
an
evolutionary biologist at Harvard, described the finding as "a really
strange and unexpected result," which would be important if the
observation
holds up and applies widely in nature.
A mutated gene can be put right by various mechanisms that are already
known, but all require a correct copy of the gene to be available to
serve
as the template. The Purdue team scanned the DNA of the entire
arabidopsis
genome for a second, cryptic copy of the hothead gene but could find
none
(Nicholas Wade, New York Times, March 23, 2005).
[TBC: The theory of evolution continually faces questions which
necessitates
that researchers "make it up" as they go along.]
.

User: "Denis Loubet"

Title: Re: Startling Scientists, Plant Fixes Its Flawed Gene 11 Jun 2005 12:51:39 AM
"Tim Campbell" <timcall@sbcglobal.net> wrote in message
news:1118462415.117813.302250@g47g2000cwa.googlegroups.com...

Startling Scientists, Plant Fixes Its Flawed Gene
(Excerpts)

In a startling discovery, geneticists at Purdue University say they
have
found plants that possess a corrected version of a defective gene
inherited
from both their parents, as if some handy backup copy with the right
version
had been made in the grandparents' generation or earlier.

The finding implies that some organisms may contain a cryptic backup
copy of
their genome that bypasses the usual mechanisms of heredity. If
confirmed,
it would represent an unprecedented exception to the laws of
inheritance
discovered by Gregor Mendel in the 19th century. Equally surprising,
the
cryptic genome appears not to be made of DNA, the standard hereditary
material.

The discovery also raises interesting biological questions - including
whether it gets in the way of evolution, which depends on mutations
changing
an organism rather than being put right by a backup system.

"It looks like a marvelous discovery," said Dr. Elliott Meyerowitz, a
plant
geneticist at the California Institute of Technology. Dr. David Haig,
an
evolutionary biologist at Harvard, described the finding as "a really
strange and unexpected result," which would be important if the
observation
holds up and applies widely in nature.

A mutated gene can be put right by various mechanisms that are already
known, but all require a correct copy of the gene to be available to
serve
as the template. The Purdue team scanned the DNA of the entire
arabidopsis
genome for a second, cryptic copy of the hothead gene but could find
none
(Nicholas Wade, New York Times, March 23, 2005).

[TBC: The theory of evolution continually faces questions which
necessitates
that researchers "make it up" as they go along.]

They're not making anything up, they're STUDYING it.
A molehill does not destroy the mountain so easily.
--
Denis Loubet
dloubet@io.com
http://www.io.com/~dloubet


.

User: "johac"

Title: Re: Startling Scientists, Plant Fixes Its Flawed Gene 11 Jun 2005 02:12:14 AM
In article <1118462415.117813.302250@g47g2000cwa.googlegroups.com>,
"Tim Campbell" <timcall@sbcglobal.net> wrote:

Startling Scientists, Plant Fixes Its Flawed Gene
(Excerpts)

In a startling discovery, geneticists at Purdue University say they
have
found plants that possess a corrected version of a defective gene
inherited
from both their parents, as if some handy backup copy with the right
version
had been made in the grandparents' generation or earlier.

The finding implies that some organisms may contain a cryptic backup
copy of
their genome that bypasses the usual mechanisms of heredity. If
confirmed,
it would represent an unprecedented exception to the laws of
inheritance
discovered by Gregor Mendel in the 19th century. Equally surprising,
the
cryptic genome appears not to be made of DNA, the standard hereditary
material.

The discovery also raises interesting biological questions - including
whether it gets in the way of evolution, which depends on mutations
changing
an organism rather than being put right by a backup system.

"It looks like a marvelous discovery," said Dr. Elliott Meyerowitz, a
plant
geneticist at the California Institute of Technology. Dr. David Haig,
an
evolutionary biologist at Harvard, described the finding as "a really
strange and unexpected result," which would be important if the
observation
holds up and applies widely in nature.

A mutated gene can be put right by various mechanisms that are already
known, but all require a correct copy of the gene to be available to
serve
as the template. The Purdue team scanned the DNA of the entire
arabidopsis
genome for a second, cryptic copy of the hothead gene but could find
none
(Nicholas Wade, New York Times, March 23, 2005).

Interesting observation. We'll have to see where it leads.


[TBC: The theory of evolution continually faces questions which
necessitates
that researchers "make it up" as they go along.]

Uh, you were trying to make a point here?
--
John Hachmann aa #1782
"Those who can make you believe absurdities can make you commit atrocities"
-Voltaire
.
User: "stoney"

Title: Re: Startling Scientists, Plant Fixes Its Flawed Gene 11 Jun 2005 09:25:28 AM
On Sat, 11 Jun 2005 00:12:14 -0700, johac <jhachm@ixpres.com> wrote:

In article <1118462415.117813.302250@g47g2000cwa.googlegroups.com>,
"Tim Campbell" <timcall@sbcglobal.net> wrote:

Startling Scientists, Plant Fixes Its Flawed Gene
(Excerpts)

In a startling discovery, geneticists at Purdue University say they
have
found plants that possess a corrected version of a defective gene
inherited
from both their parents, as if some handy backup copy with the right
version
had been made in the grandparents' generation or earlier.

The finding implies that some organisms may contain a cryptic backup
copy of
their genome that bypasses the usual mechanisms of heredity. If
confirmed,
it would represent an unprecedented exception to the laws of
inheritance
discovered by Gregor Mendel in the 19th century. Equally surprising,
the
cryptic genome appears not to be made of DNA, the standard hereditary
material.

The discovery also raises interesting biological questions - including
whether it gets in the way of evolution, which depends on mutations
changing
an organism rather than being put right by a backup system.

"It looks like a marvelous discovery," said Dr. Elliott Meyerowitz, a
plant
geneticist at the California Institute of Technology. Dr. David Haig,
an
evolutionary biologist at Harvard, described the finding as "a really
strange and unexpected result," which would be important if the
observation
holds up and applies widely in nature.

A mutated gene can be put right by various mechanisms that are already
known, but all require a correct copy of the gene to be available to
serve
as the template. The Purdue team scanned the DNA of the entire
arabidopsis
genome for a second, cryptic copy of the hothead gene but could find
none
(Nicholas Wade, New York Times, March 23, 2005).


Interesting observation. We'll have to see where it leads.

Indeed.

[TBC: The theory of evolution continually faces questions which
necessitates
that researchers "make it up" as they go along.]


Uh, you were trying to make a point here?

At the top of its head, yes. It succeeded.
--
Contempt of Congress meter reading-offscale.
Hello, theocracy with a fundamentalist US Supreme
Court who will ensure church and state are joined
at the hip like clergy and altar boys.
America 1776-Jan 2001 RIP
"As democracy is perfected, the office of president
represents, more and more closely, the inner soul
of the people. On some great and glorious day the
plain folks of the land will reach their heart's
desire at last and the White House will be adorned
by a downright moron." --- H.L. Mencken (1880 - 1956)
Religion is the original war crime.
-Michelle Malkin (Feb 26, 2005)
.
User: "johac"

Title: Re: Startling Scientists, Plant Fixes Its Flawed Gene 12 Jun 2005 11:41:43 PM
In article <p1tla11c8010ogvjujfpluhcso6nvpv8k3@4ax.com>,
stoney <stoney@the.net> wrote:

On Sat, 11 Jun 2005 00:12:14 -0700, johac <jhachm@ixpres.com> wrote:

In article <1118462415.117813.302250@g47g2000cwa.googlegroups.com>,
"Tim Campbell" <timcall@sbcglobal.net> wrote:

Startling Scientists, Plant Fixes Its Flawed Gene
(Excerpts)

In a startling discovery, geneticists at Purdue University say they
have
found plants that possess a corrected version of a defective gene
inherited
from both their parents, as if some handy backup copy with the right
version
had been made in the grandparents' generation or earlier.

The finding implies that some organisms may contain a cryptic backup
copy of
their genome that bypasses the usual mechanisms of heredity. If
confirmed,
it would represent an unprecedented exception to the laws of
inheritance
discovered by Gregor Mendel in the 19th century. Equally surprising,
the
cryptic genome appears not to be made of DNA, the standard hereditary
material.

The discovery also raises interesting biological questions - including
whether it gets in the way of evolution, which depends on mutations
changing
an organism rather than being put right by a backup system.

"It looks like a marvelous discovery," said Dr. Elliott Meyerowitz, a
plant
geneticist at the California Institute of Technology. Dr. David Haig,
an
evolutionary biologist at Harvard, described the finding as "a really
strange and unexpected result," which would be important if the
observation
holds up and applies widely in nature.

A mutated gene can be put right by various mechanisms that are already
known, but all require a correct copy of the gene to be available to
serve
as the template. The Purdue team scanned the DNA of the entire
arabidopsis
genome for a second, cryptic copy of the hothead gene but could find
none
(Nicholas Wade, New York Times, March 23, 2005).


Interesting observation. We'll have to see where it leads.


Indeed.

[TBC: The theory of evolution continually faces questions which
necessitates
that researchers "make it up" as they go along.]


Uh, you were trying to make a point here?


At the top of its head, yes. It succeeded.

I thought that was caused the last of his neurons fighting to escape.
--
John Hachmann aa #1782
"Those who can make you believe absurdities can make you commit atrocities"
-Voltaire
.
User: "stoney"

Title: Re: Startling Scientists, Plant Fixes Its Flawed Gene 14 Jun 2005 09:37:06 AM
On Sun, 12 Jun 2005 21:41:43 -0700, johac <jhachm@ixpres.com> wrote:

In article <p1tla11c8010ogvjujfpluhcso6nvpv8k3@4ax.com>,
stoney <stoney@the.net> wrote:

On Sat, 11 Jun 2005 00:12:14 -0700, johac <jhachm@ixpres.com> wrote:

In article <1118462415.117813.302250@g47g2000cwa.googlegroups.com>,
"Tim Campbell" <timcall@sbcglobal.net> wrote:

Startling Scientists, Plant Fixes Its Flawed Gene
(Excerpts)

In a startling discovery, geneticists at Purdue University say they
have
found plants that possess a corrected version of a defective gene
inherited
from both their parents, as if some handy backup copy with the right
version
had been made in the grandparents' generation or earlier.

The finding implies that some organisms may contain a cryptic backup
copy of
their genome that bypasses the usual mechanisms of heredity. If
confirmed,
it would represent an unprecedented exception to the laws of
inheritance
discovered by Gregor Mendel in the 19th century. Equally surprising,
the
cryptic genome appears not to be made of DNA, the standard hereditary
material.

The discovery also raises interesting biological questions - including
whether it gets in the way of evolution, which depends on mutations
changing
an organism rather than being put right by a backup system.

"It looks like a marvelous discovery," said Dr. Elliott Meyerowitz, a
plant
geneticist at the California Institute of Technology. Dr. David Haig,
an
evolutionary biologist at Harvard, described the finding as "a really
strange and unexpected result," which would be important if the
observation
holds up and applies widely in nature.

A mutated gene can be put right by various mechanisms that are already
known, but all require a correct copy of the gene to be available to
serve
as the template. The Purdue team scanned the DNA of the entire
arabidopsis
genome for a second, cryptic copy of the hothead gene but could find
none
(Nicholas Wade, New York Times, March 23, 2005).


Interesting observation. We'll have to see where it leads.


Indeed.

[TBC: The theory of evolution continually faces questions which
necessitates
that researchers "make it up" as they go along.]


Uh, you were trying to make a point here?


At the top of its head, yes. It succeeded.


I thought that was caused the last of his neurons fighting to escape.

Entirely possible.
--
Contempt of Congress meter reading-offscale.
Hello, theocracy with a fundamentalist US Supreme
Court who will ensure church and state are joined
at the hip like clergy and altar boys.
America 1776-Jan 2001 RIP
"As democracy is perfected, the office of president
represents, more and more closely, the inner soul
of the people. On some great and glorious day the
plain folks of the land will reach their heart's
desire at last and the White House will be adorned
by a downright moron." --- H.L. Mencken (1880 - 1956)
Religion is the original war crime.
-Michelle Malkin (Feb 26, 2005)
.




User: "Nivlem"

Title: Re: Startling Scientists, Plant Fixes Its Flawed Gene 11 Jun 2005 02:16:04 PM
On 10 Jun 2005 21:00:15 -0700, "Tim Campbell"
<timcall@sbcglobal.net> wrote:

Startling Scientists, Plant Fixes Its Flawed Gene
(Excerpts)

<snip>

[TBC: The theory of evolution continually faces questions which
necessitates
that researchers "make it up" as they go along.]

That is kinda how science works. Data comes in. Where it
doesn't fit the theory as currently construed, you modify
the theory to accomodate, until another theory is developed
which explains the available data better and makes more
accurate predictions. It doesn't work like fundamentalist
morons and their King James version Bible atall. So I
suppose that's reason enough for them to hate and fear
science, regardless of its usefulness.
.

User: "stoney"

Title: Re: Startling Scientists, Plant Fixes Its Flawed Gene 11 Jun 2005 09:24:21 AM
On 10 Jun 2005 21:00:15 -0700, "Tim Campbell" <timcall@sbcglobal.net>
wrote:

Startling Scientists, Plant Fixes Its Flawed Gene
(Excerpts)

In a startling discovery, geneticists at Purdue University say they
have
found plants that possess a corrected version of a defective gene
inherited
from both their parents, as if some handy backup copy with the right
version
had been made in the grandparents' generation or earlier.

The finding implies that some organisms may contain a cryptic backup
copy of
their genome that bypasses the usual mechanisms of heredity. If
confirmed,
it would represent an unprecedented exception to the laws of
inheritance
discovered by Gregor Mendel in the 19th century. Equally surprising,
the
cryptic genome appears not to be made of DNA, the standard hereditary
material.

The discovery also raises interesting biological questions - including
whether it gets in the way of evolution, which depends on mutations
changing
an organism rather than being put right by a backup system.

"It looks like a marvelous discovery," said Dr. Elliott Meyerowitz, a
plant
geneticist at the California Institute of Technology. Dr. David Haig,
an
evolutionary biologist at Harvard, described the finding as "a really
strange and unexpected result," which would be important if the
observation
holds up and applies widely in nature.

A mutated gene can be put right by various mechanisms that are already
known, but all require a correct copy of the gene to be available to
serve
as the template. The Purdue team scanned the DNA of the entire
arabidopsis
genome for a second, cryptic copy of the hothead gene but could find
none
(Nicholas Wade, New York Times, March 23, 2005).

[TBC: The theory of evolution continually faces questions which
necessitates
that researchers "make it up" as they go along.]

Ah yes, Christian ignorance and dishonesty strikes again.
--
Contempt of Congress meter reading-offscale.
Hello, theocracy with a fundamentalist US Supreme
Court who will ensure church and state are joined
at the hip like clergy and altar boys.
America 1776-Jan 2001 RIP
"As democracy is perfected, the office of president
represents, more and more closely, the inner soul
of the people. On some great and glorious day the
plain folks of the land will reach their heart's
desire at last and the White House will be adorned
by a downright moron." --- H.L. Mencken (1880 - 1956)
Religion is the original war crime.
-Michelle Malkin (Feb 26, 2005)
.

User: "John Popelish"

Title: Re: Startling Scientists, Plant Fixes Its Flawed Gene 11 Jun 2005 01:10:02 AM
Tim Campbell wrote:

Startling Scientists, Plant Fixes Its Flawed Gene
(Excerpts)

In a startling discovery, geneticists at Purdue University say they
have
found plants that possess a corrected version of a defective gene
inherited
from both their parents, as if some handy backup copy with the right
version
had been made in the grandparents' generation or earlier.

The finding implies that some organisms may contain a cryptic backup
copy of
their genome that bypasses the usual mechanisms of heredity. If
confirmed,
it would represent an unprecedented exception to the laws of
inheritance
discovered by Gregor Mendel in the 19th century. Equally surprising,
the
cryptic genome appears not to be made of DNA, the standard hereditary
material.

The discovery also raises interesting biological questions - including
whether it gets in the way of evolution, which depends on mutations
changing
an organism rather than being put right by a backup system.

"It looks like a marvelous discovery," said Dr. Elliott Meyerowitz, a
plant
geneticist at the California Institute of Technology. Dr. David Haig,
an
evolutionary biologist at Harvard, described the finding as "a really
strange and unexpected result," which would be important if the
observation
holds up and applies widely in nature.

A mutated gene can be put right by various mechanisms that are already
known, but all require a correct copy of the gene to be available to
serve
as the template. The Purdue team scanned the DNA of the entire
arabidopsis
genome for a second, cryptic copy of the hothead gene but could find
none
(Nicholas Wade, New York Times, March 23, 2005).

[TBC: The theory of evolution continually faces questions which
necessitates
that researchers "make it up" as they go along.]

That isn't "making it up as they go along". That is an example of not
having faith in what you think is true, but going out and questioning
and testing your assumptions to see if indeed they are true. In this
case, it appears that they have discovered yet another wrinkle in
genetic inheritance. It means that life is even more complicated that
they had expected. I look forward to their figuring out how this case
works. Who knows what practical use this knowledge will have? How
would you like a cancer drug that repairs the genome in cells that
have turned cancerous by whatever trick this plant uses? I would.
Their research may add another esoteric detail to the theory of
evolution but it certainly won't overturn it.
.


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