Monday, October 16, 2023

On The Origin Of A Genetic Constant - 2

I. Preface

The Toxic Bridge

Not all scientists like to "play with dolls" when discussing origins.

Instead, they chronicle what they do and don't know in certain instances:

"I just want to begin this by thinking about a bridge. In this particular case, it's an obvious bridge. AND IF YOU THINK ABOUT EVOLUTION, YOU KNOW WHERE WE'VE COME TO, BUT YOU DON'T KNOW WHERE WE BEGAN. So origins of life is one of the most challenging problems facing science. Actually, as my friend and colleague Nick Lane says, it's the black hole of science. It's an embarrassment. And it's a very complicated problem. Obviously, in this university, Jack Szostak and others work on this from one angle. I'm trying to understand it from another angle. But we know a certain amount about how we have a certain number of ingredients. So this is a very, very famous plot. And I'm not going to bother you with all the details, but I just want to give you a little bit of an idea. Victor Goldschmidt, who created this plot originally, was a Swiss Jew born in Zurich.
Carbon Origins?
And his father took a position at the University in Oslo. So when he was a young man, he actually graduated university I believe at the age of 21 with a PhD. He became a professor himself, and he created a field which is geochemistry. He created it. And he was obsessed with understanding the distribution of elements in the universe. So he did several things. He analyzed meteorites, he looked at spectra of stars, and so on. And WE COME UP WITH THIS BASIC PLOT, which is THE TWO FIRST ELEMENTS ARE HYDROGEN AND HELIUM, which are created ABOUT 13.8, 13.9 BILLION YEARS AGO IN THE BIG BANG. And everything else on this plot the astronomers called metals, but EVERYTHING ELSE [atomic] IS CREATED IN A SUPERNOVA ... A very hot short life star. ["NOT OUR STAR" ... not the Sun]."

(Dr. Falkowski, partial transcript of video below, emphasis added). That excerpt is an excellent place for a beginning.

So, let's move on from "hydrogen" (which is one of the "two first elements ... everything else is created in a supernova, not our star") to carbon, nitrogen, and oxygen.

The first element group, represented by hydrogen, is found in DNA (~35%), so was it in the supernova that is said to have created the other three elements in DNA (carbon ~32%, nitrogen ~25%, and oxygen ~6%). 

Dr. Falkowski's statement "but you don't know where we began" seems relevant because we don't know how the hydrogen could have gotten into a supernova, and then have gotten here from that supernova.

But more than that, how they all four then ended up in the ~32/35/25/6 percentages and quantities to form abiotic DNA nucleotides.

Dare I ask how those four got together to make our everything (On The Origin of Genieology)?

Especially when one considers the time it takes for particles to travel from point A to point B when induced by gravitational force:

" Formulas, Constants, & Variables Used

Formula: g = G * (H atoms mass / r2) (gravitational acceleration)

Constants:
secs_day = (60.0 * 60.0) * 24.0
secs_year = secs_day * 365.25
G = 6.67e-11 (gravitational constant)
Variables:
r = distance (between center) of atoms (m)


Calculations of gravitational actions
between Atom Group A and Atom group B
in terms of being pulled
into contact by gravity


Group A Group B Dist (m) mass per
group (kg)
atoms
per group
years to
contact
atoms-1A atoms-1B 1e-09 1.67e-21 1e+06 71,124
atoms-2A atoms-2B 2e-09 3.34e-21 2e+06 142,245
atoms-3A atoms-3B 3e-09 5.01e-21 3e+06 213,365
atoms-4A atoms-4B 4e-09 6.68e-21 4e+06 284,486
atoms-5A atoms-5B 5e-09 8.35e-21 5e+06 355,606
atoms-6A atoms-6B 6e-09 1.002e-20 6e+06 426,726
atoms-7A atoms-7B 7e-09 1.169e-20 7e+06 497,847
atoms-8A atoms-8B 8e-09 1.336e-20 8e+06 568,967

Adding a bunch of them together to make dust doesn't really solve the Mr. Time problem:


Calculations of various
gravitational interactions
(Cloud A to Cloud B)


Cloud A Cloud B Dist (m) mass (kg) years to
contact
DC-1A DC-1B 1 1 121
DC-2A DC-2B 10 10 1,191
DC-3A DC-3B 100 100 11,881
DC-4A DC-4B 1000 1000 118,775
DC-5A DC-5B 10,000 10,000 1,187,714
DC-6A DC-6B 100,000 100,000 11,877,100
DC-7A DC-7B 1,000,000 1,000,000 118,770,950
DC-8A DC-8B 10,000,000 10,000,000 1,187,709,445

When acceleration of gravity is considered when contemplating the concept of the protons, electrons, neutrons becoming builders of atoms, and then atoms becoming builders of molecules, and non-living molecules then becoming the builders of life, a particular episode in that 'movie' has to take place in which a decision must be made."

 (Small Brains Considered - 16). These considerations are relevant.

II. Current Series Status

In today's post of this current Dredd Blog series, we move on further into the process of identifying a genetic constant (On The Origin of The Containment Entity - 16).

I have finished downloading the almost 8,000 ".gz" compressed files stored at the Genbank FTP site (~1 terabyte of data).

And I completed the filtering-out of partial genome segments, choosing to use only relatively complete genome sequences (>10,000 bp).

The result is that I am using millions of genomes (now in SQL database tables, which are the end result of that download effort) to more clearly expose "a genetic constant" ~(32/35/25/6).

III. Simplicity

The exercise involved in exposing this "Genetic Constant" is very, very simple at its core:

"The number of atoms in a given nucleotide ('A', 'C', 'G', 'T', and 'U') are:

'A' = "C5H5N5" (5 Carbon, 5 Hydrogen, 5 Nitrogen)

'C' = "C4H5N3O1" (4 Carbon, 5 Hydrogen, 3 Nitrogen, 1 Oxygen)

'T' = "C5H6N2O2" (5 Carbon, 6 Hydrogen, 2 Nitrogen, 2 Oxygen)

'G' = "C5H5N5O1" (5 Carbon, 5 Hydrogen, 5 Nitrogen, 1 Oxygen)

'U' = "C4H4N2O2" (4 Carbon, 4 Hydrogen, 2 Nitrogen, 2 Oxygen)

(Quantum Biology - 18). As you can see the analysis of the atom content of any given genome in the appendix (Link) is a function of simple arithmetic (it is not "rocket science").

The percentages are derived by dividing the count of each atom type by the total atom count."

(On The Origin of The Containment Entity - 16). How that constant is calculated depends on whether the genetic sequence is DNA or RNA (a DNA 'T' count is not the same as an RNA 'U' count; note that this current exercise only involves DNA).

For example a secretary or student could load a genome from the GenBank into a word processor; then proceed to add up the atoms in each 'A', 'C', 'G' and 'T' in the text of that genome until the last nucleotide has been processed; at which time each of those four individual totals would be divided by the total number of atoms in the genome so as to derive the constants, i.e. the percentages.

That is the basic numerical origin of the "~(32/35/25/6)" genetic constant.

In other words the problem is not simplicity, no, it is volume because some genomes are composed of millions of nucleotides, so it would take an inordinate amount of time to calculate them 'by hand'.

Thus, the Dredd Blog software that does them "at light speed" was formed.

IV. Appendices Containing GenBank Genomes

I generated appendices for this series using some taxonomy data from Introduction to Binomial Nomenclature, which I may have to expand by using the more extensive NCBI taxonomy data.

Anyway, the appendices in today's post contain 272 actual GenBank genomes for everything from Arabian Camels to humans to plants (Appendix 1, 2, 3, 4, 5, 6, 7, 8).

V. Closing Comments

I was amazed once again to see the ~(32/35/25/6) constant pattern in the genomes in the appendices.

A snippet from Appendix 8 sums it up:


Grand Totals For Tables 1-272:
(Total atom count: 79,158,605,941)

Atom Type Atom Type Count Low High Variation Average
Carbon 25,707,295,089 32.3541 32.5186 0.1645% 32.4757%
Hydrogen 28,380,643,650 35.7008 35.9416 0.2408% 35.8529%
Nitrogen 19,727,729,048 24.4739 25.2710 0.7971% 24.9218%
Oxygen 5,342,938,154 6.6279 7.1642 0.5363% 6.7497%

The next post in this series is here, the previous post in this series is here.


Once upon a visit to Harvard:



2 comments:

  1. The folks that wrote "Genetic Similarities Within and Between Human Populations" (Link) would lose it if they read this post.

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  2. An 8-billion year old electromagnetic pulse traveling at the speed of light is way way ahead of any particles originating at that same distance (8 billion-year-old radio signal reaches Earth). So, how did the atoms in DNA beat them here?

    ReplyDelete