Genetics Human evolution Intelligent Design

Researchers: Some genes are unique to humans

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You’ve heard endlessly about humans as the 98% or 99% chimpanzee (and rightly discounted it if you have any capacity to analyze an argument). One group of students decided to look at the human genes that are different:

A team of student researchers from John Jay College of Criminal Justice has discovered human microRNA genes not shared with any other primate species and which may have played an important role in the unique evolution of the human species. The students, under the direction of John Jay Professors Dr. Hunter R. Johnson and Dr. Nathan H. Lents, found at least three families of microRNA genes on chromosome 21…

Although the team found that the long arm of human chromosome 21 aligns well with that of other extant ape species, the short arm aligned poorly, suggesting that this region of the human genome has recently and substantially diverged from that of other primates.

According to their analysis of prehistoric human genomes, these changes predate the divergence of Neanderthals and modern humans. The genes also show little to no sequence-based variation within the modern human population. The team therefore theorized that the microRNA (miRNA) genes found in that region [miR3648 and miR6724] likely evolved in the time since the chimpanzee and human lineages split, sometime in the last seven million years, and are specific to humans.

The City University of New York, “Student researchers discover genes unique to humans in search for source of our evolutionary distinctiveness” at ScienceDaily (March 8, 2022)

The authors attribute the differences to de novo genes (genes that just suddenly appear):

“Understanding the genetic basis for human uniqueness is an important undertaking because, despite sharing nearly 99% of our DNA sequences with the chimpanzee, we’re remarkably different organisms,” said student researcher José Galván. “Small post-transcriptional regulatory elements like miRNAs and siRNAs [small interfering RNA] are under-appreciated and often misunderstood in the effort to understand our genetic differences.”

Thanks to their small size and structural simplicity, miRNA genes have fewer barriers to de novo creation than other gene types. MicroRNA genes can be extremely prolific in their regulation of other genes, meaning that modest changes to DNA sequence can result in wide-ranging impacts to the human genome. The creation of miR3648 and miR6724 serve as excellent examples of this process. This study revealed a new possible mechanism for the creation of new miRNA genes through duplications of rRNA genes, which calls for further research on how general this phenomenon may be.

The City University of New York, “Student researchers discover genes unique to humans in search for source of our evolutionary distinctiveness” at ScienceDaily (March 8, 2022)

The paper is closed access.

Note: One of the faculty advisors is Nathan Lents, known to many readers as the author of a book, Human Errors: A Panorama of Our Glitches, from Pointless Bones to Broken Genes, claiming that humans are poorly designed. Perhaps we will soon hear that these unique, de novo genes were poorly designed.

8 Replies to “Researchers: Some genes are unique to humans

  1. 1
    polistra says:

    Betcha $10 these sequences were transferred from birds.

  2. 2
    EvilSnack says:

    “Humans were poorly designed.”
    “Speak for yourself.”

  3. 3
    asauber says:

    The “poorly designed” argument is poorly designed.

    hahaha

    Andrew

  4. 4
    Silver Asiatic says:

    “Understanding the genetic basis for human uniqueness is an important undertaking because, despite sharing nearly 99% of our DNA sequences with the chimpanzee, we’re remarkably different organisms,” said student researcher José Galván.

    That little quote brings quite a lot of the ignorance and confusion of the evolutionary scientist to the bright light of day. The student researcher is naive – he shouldn’t have said that.
    He exposed the absurdity and then admitted that nobody has an answer.
    We share 99% of sequences with chimps. Darwinists say that this is proof that we evolved from chimps. So, we should be 99% similar to chimps, or let’s be generous and say there’s an additional 2% unaccounted for, so humans are 97% like chimpanzees.
    But student-Galvan says No. Actually, we’re “remarkably different”. Wow, really?
    Ok, the difference is “remarkable”. But evolution would have us believe we’re 99% the same and we’re not.
    Is that a problem for any evolutionist out there? Of course not.
    In the first place, nobody is going to put any precise measures on exactly how different we are. Mr. Galvan just says “remarkably”.
    When I say that there’s an infinite degree of difference between human and chimp, the evolutionists don’t like that.
    In fact, some of them think we’re almost the same. They’ve been trying to show that we really are 99% like chimps. Because if we’re “remarkably different”, then we have to say something stupid like that difference can be found in the 1% sequence difference, which weirdly created much more than 1% difference in organisms.
    It just so happens, those de novo genes were the powerful ones that drove all the difference.
    But the good news for evolution is that researchers like the student here can just say these things and nobody does a follow-up. Nobody defines how different humans are from chimps or tries to calculate how it would be possible for that difference to be accounted for by a 1% sequence different in those de novo genes.

  5. 5
    jerry says:

    The main difference in humans has always been in the control mechanisms expressing various genes especially those having to do with neural development. Apparently there are massive differences.

  6. 6
    PaV says:

    Here’s the words that caught my eyes:

    This study revealed a new possible mechanism for the creation of new miRNA genes through duplications of rRNA genes, which calls for further research on how general this phenomenon may be.

    “Gene duplication” is the Darwinists “get-out-of-jail” card. Here they’re invoking ribosomal genes. That seems a bit curious since the miRNA’s will likely interact with the rRNA and, so, this gives you a kind of “chicken-and-egg” problem.

    They’re forced to invoke this “get-out-of-jail” card because the miRNAs are so highly conserved, thus making the arrival of these miRNAs something so highly unlikely that it defies chance.

  7. 7
    bornagain77 says:

    I think I will just leave this here:

    A review of linkage mechanisms in animal joints and related bioinspired designs
    Stuart Burgess – 10 June 2021
    https://iopscience.iop.org/article/10.1088/1748-3190/abf744
    ,,, top engineering firms are paying big money to learn from the extraordinary designs found in biology so as to improve their own designs.,,,
    ,, Burgess has designed groundbreaking linkage mechanisms, but he says the human knee is still well ahead of what even the most advanced human engineers have managed in this area, even accounting for the fact that wear and tear and misuse can lead to knee problems. He walks listeners through some things that make the knee an engineering marvel, and takes a look at some other masterfully designed linkage mechanisms in nature, including those found in the jaws of fish.
    https://evolutionnews.org/2022/03/stuart-burgess-biologys-designs-tutor-our-top-engineers/

    i.e. If you can reverse engineer a system, and learn how to better engineer your own systems, you can say with confidence that the system you are studying was engineered in the first place.

  8. 8
    martin_r says:

    BA77

    A review of linkage mechanisms in animal joints and related bioinspired designs
    Stuart Burgess – 10 June 2021

    i.e. If you can reverse engineer a system, and learn how to better engineer your own systems, you can say with confidence that the system you are studying was engineered in the first place.

    Biologists – natural science graduates, would disagree with you … These romantics know better than all engineers in the world. There is zero evidence how joints / bones /skeleton evolved, but who cares, …

    Biologists – natural science graduates who never made anything, have their theory and that is what is important … this crazy absurd theory is an insult for all engineers …

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