Originally posted by DaveB
View Post
Announcement
Collapse
Natural Science 301 Guidelines
This is an open forum area for all members for discussions on all issues of science and origins. This area will and does get volatile at times, but we ask that it be kept to a dull roar, and moderators will intervene to keep the peace if necessary. This means obvious trolling and flaming that becomes a problem will be dealt with, and you might find yourself in the doghouse.
As usual, Tweb rules apply. If you haven't read them now would be a good time.
Forum Rules: Here
As usual, Tweb rules apply. If you haven't read them now would be a good time.
Forum Rules: Here
See more
See less
Optimized amino acids
Collapse
X
-
Originally posted by DaveB View PostNot only was I aware of Pyrrolysine, I'm also aware of Selenocycteine.
The organisms that use Pyrrolysine have genes for a specific tRNA and aminoacyl-tRNA-synthetase for Pyrrolysine. And, it doesn't replace an existing amino acid/codon mapping, it codes to one of the stop codons.
You need to explain how either one (tRNA or aminoacyl-tRNA-synthetase) could have been selected for without the other one existing. They work together.
Is this a case of an additional amino acid being added to the set or a case of discovering an amino acid that was always being used in certain organisms?
Comment
-
Originally posted by DaveB, earlierYou simply don't have any evidence that there were life forms that used alternative sets of amino acids.Originally posted by DaveB, nowNot only was I aware of Pyrrolysine, I'm also aware of Selenocycteine.
The organisms that use Pyrrolysine have genes for a specific tRNA and aminoacyl-tRNA-synthetase for Pyrrolysine. And, it doesn't replace an existing amino acid/codon mapping, it codes to one of the stop codons.
So you know shunyadragon does have evidence for life forms that used alternative sets of amino acids.
And you know my scenario about post-LUCA amino-acid set evolution is not merely hypothetical, and doesn't require new discoveries.
Those were lies on your part.
Alternatively, you could be lying now when you say you knew about pyrrolysine-using organisms all along. It doesn't really matter which.You need to explain how either one (tRNA or aminoacyl-tRNA-synthetase) could have been selected for without the other one existing. They work together.
Is this a case of an additional amino acid being added to the set or a case of discovering an amino acid that was always being used in certain organisms?Jorge: Functional Complex Information is INFORMATION that is complex and functional.
MM: First of all, the Bible is a fixed document.
MM on covid-19: We're talking about an illness with a better than 99.9% rate of survival.
seer: I believe that so called 'compassion' [for starving Palestinian kids] maybe a cover for anti Semitism, ...
Comment
-
Originally posted by TheLurch View PostOk, since i've been ignoring this while sick, it seems like a good chance to back up to some basic stuff. Lee, without resorting to internet searches, can you answer the following questions:
How many different sets of amino acids are currently in use? (Or, put differently, how many distinct genetic codes are there?)
What is the name of the class of enzyme responsible for matching amino acids to genetic codes?
Has that enzyme class shown signs of recent evolution?
These all seem relevant to your claim that the genetic code hasn't evolved. Do you actually know them?
Blessings,
Lee"What I pray of you is, to keep your eye upon Him, for that is everything. Do you say, 'How am I to keep my eye on Him?' I reply, keep your eye off everything else, and you will soon see Him. All depends on the eye of faith being kept on Him. How simple it is!" (J.B. Stoney)
Comment
-
Originally posted by lee_merrill View PostNo, I don't know these, you may of course bring them up and we can discuss them. I do seem to recall a mention of synthetase in my searches on this subject, though."Any sufficiently advanced stupidity is indistinguishable from trolling."
Comment
-
Originally posted by TheLurch View PostSo, after page after page of arguing about the evolution of the genetic code, you're admitting that you don't even know how much the genetic code evolves?
Blessings,
Lee"What I pray of you is, to keep your eye upon Him, for that is everything. Do you say, 'How am I to keep my eye on Him?' I reply, keep your eye off everything else, and you will soon see Him. All depends on the eye of faith being kept on Him. How simple it is!" (J.B. Stoney)
Comment
-
Originally posted by lee_merrill View PostGlad to learn if I'm wrong, that's part of the reason for such forums."Any sufficiently advanced stupidity is indistinguishable from trolling."
Comment
-
Originally posted by TheLurch View PostI've asked this several times in response to your "happy to learn" posts, but you've never answered it. So i'll try again: if you haven't learned in the first place, why do you make such confident assertions about a topic? Wouldn't it be better to ask questions and learn first? Doesn't it bother you to say things that are untrue?
Blessings,
Lee"What I pray of you is, to keep your eye upon Him, for that is everything. Do you say, 'How am I to keep my eye on Him?' I reply, keep your eye off everything else, and you will soon see Him. All depends on the eye of faith being kept on Him. How simple it is!" (J.B. Stoney)
Comment
-
Originally posted by lee_merrill View PostWell, I state my conclusions if I feel the evidence merits a conclusion, otherwise I will indeed ask questions. And you need to show me that amino acid sets are evolving, before I change my conclusion.
Blessings,
Lee
You were shown in proteins and DNA is evolving to include new combinations that include up to 22 amino acids.
Comment
-
Originally posted by lee_merrill View PostWell, I state my conclusions if I feel the evidence merits a conclusion."Any sufficiently advanced stupidity is indistinguishable from trolling."
Comment
-
Originally posted by TheLurch View PostYou've just admitted that you don't know or understand much of the relevant evidence. So why have you stated a conclusion regardless?
Blessings,
Lee"What I pray of you is, to keep your eye upon Him, for that is everything. Do you say, 'How am I to keep my eye on Him?' I reply, keep your eye off everything else, and you will soon see Him. All depends on the eye of faith being kept on Him. How simple it is!" (J.B. Stoney)
Comment
-
Originally posted by shunyadragon View PostYou were shown in proteins and DNA is evolving to include new combinations that include up to 22 amino acids.
Blessings,
Lee"What I pray of you is, to keep your eye upon Him, for that is everything. Do you say, 'How am I to keep my eye on Him?' I reply, keep your eye off everything else, and you will soon see Him. All depends on the eye of faith being kept on Him. How simple it is!" (J.B. Stoney)
Comment
-
Originally posted by lee_merrill View PostI don't recall this, can you give me a link?
Blessings,
Lee
Comment
-
Originally posted by lee_merrill View PostSo enlighten me! I've stated my conclusion based on the knowledge that I have, having read that 20 amino acids are common to all life.
Blessings,
Lee
Yes, again the sets of amino acids do continue to evolve. Do your home work. So far in the course of this and other threads you have failed to do just that. The Lurch is right, and better educated than either of us.
Comment
-
Originally posted by lee_merrill View PostSo enlighten me! I've stated my conclusion based on the knowledge that I have, having read that 20 amino acids are common to all life."Any sufficiently advanced stupidity is indistinguishable from trolling."
Comment
Related Threads
Collapse
Topics | Statistics | Last Post | ||
---|---|---|---|---|
Started by rogue06, 05-03-2024, 02:47 PM
|
3 responses
33 views
1 like
|
Last Post
by shunyadragon
05-07-2024, 08:07 PM
|
||
Started by rogue06, 05-03-2024, 12:33 PM
|
8 responses
77 views
2 likes
|
Last Post
by shunyadragon
05-24-2024, 06:25 PM
|
||
Started by rogue06, 04-27-2024, 09:38 AM
|
0 responses
14 views
1 like
|
Last Post
by rogue06
04-27-2024, 09:38 AM
|
||
Started by shunyadragon, 04-26-2024, 10:10 PM
|
5 responses
27 views
0 likes
|
Last Post
by shunyadragon
04-28-2024, 08:10 AM
|
Comment