No more ‘junk DNA’
By Rhiannonw
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The ‘brain’ of each cell
has DNA-genes,
chemical coding
builds, guides its ‘machines’.
“Ninety-eight percent
useless junk”, they thought,
“– evolution’s left-overs
it’s use is now nought”.
– “Mistakes of mutations”,
they used to say,
“in bringing its benefits,
has made junk DNA.”
*********
But now it’s revealed
it’s all much more complex:
amazed as they’re finding
that nothing seems surplus.
The control is more intricate
of all this ‘machinery’
than Dawkins predicted
from Darwinian theory.
‘We’re at the beginning
of a very long road
of finding the layers
of pathways untold.’
Geneticists say
they now are more humble.
– Upgrading a cell looks
an impossible gamble.
Mutations cause mischief
in genetic activity,
like a bug in my laptop
won’t improve its ability.
There’s plenty of scope
for small variation:
some struggle, some flourish
by natural selection;
but differences large,
of new, useful function,
have come from creation,
not random mutation.
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Comments
It takes real skill so turn
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I really lked the way it
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I'm a bit worried. I hope
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I thought this was
TVR
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Extremely well written and
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Hi Rhiannon
Hi Rhiannon
I found this very interesting as I have been thinking about genes quite a lot lately. I was to go on a study to find out if alzheimers could be prevented - and they were testing for two particular genes. However, I was unable to make the initial meeting last week, because my daughter who was to be my partner in the project, broke her wrist, and now they say they have closed the study - having sufficient people involved. So I guess I will never know if my genes were about to tell the story of the end of my life or not.
Jean
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