The Origins of the Building Blocks of Life:

Discussion in 'Biology & Genetics' started by paddoboy, Mar 16, 2020.

  1. paddoboy Valued Senior Member

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    https://phys.org/news/2020-03-scientists-blocks-life.html

    Scientists have discovered the origins of the building blocks of life:

    Rutgers researchers have discovered the origins of the protein structures responsible for metabolism: simple molecules that powered early life on Earth and serve as chemical signals that NASA could use to search for life on other planets.

    Their study, which predicts what the earliest proteins looked like 3.5 billion to 2.5 billion years ago, is published in the journal Proceedings of the National Academy of Sciences.

    The scientists retraced, like a many thousand piece puzzle, the evolution of enzymes (proteins) from the present to the deep past. The solution to the puzzle required two missing pieces, and life on Earth could not exist without them. By constructing a network connected by their roles in metabolism, this team discovered the missing pieces.

    "We know very little about how life started on our planet. This work allowed us to glimpse deep in time and propose the earliest metabolic proteins," said co-author Vikas Nanda, a professor of Biochemistry and Molecular Biology at Rutgers Robert Wood Johnson Medical School and a resident faculty member at the Center for Advanced Biotechnology and Medicine. "Our predictions will be tested in the laboratory to better understand the origins of life on Earth and to inform how life may originate elsewhere. We are building models of proteins in the lab and testing whether they can trigger reactions critical for early metabolism.

    more at link.....

    The link to the paper appears broken.

     
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  3. Write4U Valued Senior Member

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  5. Michael 345 New year. PRESENT is 72 years oldl Valued Senior Member

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    In addition try this link

    https://www.eurekalert.org/pub_releases/2020-03/sjcu-ood031620.php

    Information about how sub species can interbreed within a species

    Note - human species is a ONE of

    No division into black / blue / green / yellow or such stupid Afro-American (can't even find the location on any globe)

    Extract

    Laura van Holstein, a PhD student in Biological Anthropology at St John's College, University of Cambridge, and lead author of the research published today (March 18) in Proceedings of the Royal Society, discovered mammal subspecies play a more important role in evolution than previously thought.

    Her research could now be used to predict which species conservationists should focus on protecting to stop them becoming endangered or extinct.

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  7. Write4U Valued Senior Member

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