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Life is thought to have started from simple inorganic molecules ('''Figure 2''') <ref>'''Evidence for early life in Earth's oldest hydrothermal vent precipitates.''' Dodd, Matthew S.; Papineau, Dominic; Grenne, Tor; Slack, John F.; Rittner, Martin; Pirajno, Franco; O'Neil, Jonathan; Little, Crispin T.S. (1 March 2017). . ''Nature''. '''543''' (7643): 60–64. Bibcode:2017Natur.543...60D. doi:10.1038/nature21377. <nowiki>PMID 28252057</nowiki>. Archived from the original on 8 September 2017. Retrieved 2 March 2017 via https://www.nature.com/articles/nature21377?source=post_page---------------------------.</ref><ref>'''Crucial steps to life: From chemical reactions to code using agents'''. ''BioSystems''. '''140''': 49–57. Witzany, Guenther (2016). doi:10.1016/j.biosystems.2015.12.007. <nowiki>PMID 26723230</nowiki>. Accessed via: https://www.sciencedirect.com/science/article/abs/pii/S0303264715002063</ref> and evolved in increasing complexity. Smaller particles combined to make larger more complex molecules which at some point gained the ability to replicate themselves.  
Life is thought to have started from simple inorganic molecules ('''Figure 2''') <ref>'''Evidence for early life in Earth's oldest hydrothermal vent precipitates.''' Dodd, Matthew S.; Papineau, Dominic; Grenne, Tor; Slack, John F.; Rittner, Martin; Pirajno, Franco; O'Neil, Jonathan; Little, Crispin T.S. (1 March 2017). . ''Nature''. '''543''' (7643): 60–64. Bibcode:2017Natur.543...60D. doi:10.1038/nature21377. <nowiki>PMID 28252057</nowiki>. Archived from the original on 8 September 2017. Retrieved 2 March 2017 via https://www.nature.com/articles/nature21377?source=post_page---------------------------.</ref><ref>'''Crucial steps to life: From chemical reactions to code using agents'''. ''BioSystems''. '''140''': 49–57. Witzany, Guenther (2016). doi:10.1016/j.biosystems.2015.12.007. <nowiki>PMID 26723230</nowiki>. Accessed via: https://www.sciencedirect.com/science/article/abs/pii/S0303264715002063</ref> and evolved in increasing complexity. Smaller particles combined to make larger more complex molecules which at some point gained the ability to replicate themselves.  


This first self replicating unit is called "''the replicant''" as it was the first entity on earth which could replicate itself. However, even thought the replicant mechanisms were near perfect, every billion replications an error occurs, which in turn, made a new form of replicant. This process then repeated over of [[Long collective history|billion years]] until...us.
This first self replicating unit was called "''the replicant''" as it was the first entity on earth which could replicate itself using a type of source code called DNA. However, even though the replication mechanisms were near perfect, every billion replications an error occurred, which in turn, made a new form of replicant. This process then repeated a zillion times over [[Long collective history|billion years]] until...us.


<div class="res-img">[[File:Inorganic life.jpg|alt=Biomolecular pathway|center|Figure 1. Poop]]
<div class="res-img">[[File:Inorganic life.jpg|alt=Biomolecular pathway|center|Figure 1. Poop]]


From the simplest inorganic to the more complex organic.|thumb]]This process is called abiogenesis. If you wait another 3.5 billion years, the process becomes even more complex, and results in multicellular organisms, like us. Whilst the traditional stepped classification (see '''Figure 1''') is useful to scientists, as it makes digestible chunks to interpret, in the real world the process is much more fluid<ref>'''Taxonomic boundary paradox''' as described by: Taxonomy versus evolution: János  Podani Department of Plant Taxonomy and Ecology, Biological Institute, Eötvös University, Pázmány P. s. 1/c, 1117 Budapest, Hungary. TA XON 58 (4) • Published November 2009:  1049–1053. Accessed on 3 July 2022 via: https://onlinelibrary.wiley.com/doi/epdf/10.1002/tax.584001 </ref>. Similar to the roots of a tree branching out, although many stems are produced it is still the same ''super'' organism travelling through time, as shown below.
This process is called abiogenesis. Whilst the traditional stepped classification (see '''Figure 1''') is useful to scientists, as it makes digestible chunks to interpret, in the real world the process is much more fluid<ref>'''Taxonomic boundary paradox''' as described by: Taxonomy versus evolution: János  Podani Department of Plant Taxonomy and Ecology, Biological Institute, Eötvös University, Pázmány P. s. 1/c, 1117 Budapest, Hungary. TA XON 58 (4) • Published November 2009:  1049–1053. Accessed on 3 July 2022 via: https://onlinelibrary.wiley.com/doi/epdf/10.1002/tax.584001 </ref> more like the roots of a tree branching out. The key takeaway is that although many branches are produced it is still the same ''superorganism'', as shown below.
[[File:Step to flow.png|alt=Step to flow|center|700x700px|thumb|'''Figure 3'''. The superorganism.]]
[[File:Step to flow.png|alt=Step to flow|center|700x700px|thumb|'''Figure 3'''. The superorganism.]]


'''''We are all more closely related than you think'', as all life, in short, is us travelling through time!'''
'''''We are all more closely related than you think'', as all life, in short, is DNA travelling through time!'''


[[Main Page|'''<<<Back to front page.''']]
[[Main Page|'''<<<Back to front page.''']]

Revision as of 23:18, 30 August 2022

Phylogenetic Tree
Figure 1. The traditional stepped view of the tree of life.

We are all more closely related than you may think.

Historically, the development of life has always been portrayed in distinct, stepped stages. Life starts at the Root (Figure 1) and through time, evolution irons out the kinks, ultimately to make us, the most complex forms of life on the planet. But this has always left an important question, where did the Root come from?

Life is thought to have started from simple inorganic molecules (Figure 2) [1][2] and evolved in increasing complexity. Smaller particles combined to make larger more complex molecules which at some point gained the ability to replicate themselves.

This first self replicating unit was called "the replicant" as it was the first entity on earth which could replicate itself using a type of source code called DNA. However, even though the replication mechanisms were near perfect, every billion replications an error occurred, which in turn, made a new form of replicant. This process then repeated a zillion times over billion years until...us.

Biomolecular pathway

This process is called abiogenesis. Whilst the traditional stepped classification (see Figure 1) is useful to scientists, as it makes digestible chunks to interpret, in the real world the process is much more fluid[3] more like the roots of a tree branching out. The key takeaway is that although many branches are produced it is still the same superorganism, as shown below.

Step to flow
Figure 3. The superorganism.

We are all more closely related than you think, as all life, in short, is DNA travelling through time!

<<<Back to front page.

Further reading
  • The Selfish Gene - Dawkins, Richard, 1941. Oxford ; New York :Oxford University Press, 1989. ISBN: 978-0198788607

References

  1. ↑ Evidence for early life in Earth's oldest hydrothermal vent precipitates. Dodd, Matthew S.; Papineau, Dominic; Grenne, Tor; Slack, John F.; Rittner, Martin; Pirajno, Franco; O'Neil, Jonathan; Little, Crispin T.S. (1 March 2017). . Nature. 543 (7643): 60–64. Bibcode:2017Natur.543...60D. doi:10.1038/nature21377. PMID 28252057. Archived from the original on 8 September 2017. Retrieved 2 March 2017 via https://www.nature.com/articles/nature21377?source=post_page---------------------------.
  2. ↑ Crucial steps to life: From chemical reactions to code using agents. BioSystems. 140: 49–57. Witzany, Guenther (2016). doi:10.1016/j.biosystems.2015.12.007. PMID 26723230. Accessed via: https://www.sciencedirect.com/science/article/abs/pii/S0303264715002063
  3. ↑ Taxonomic boundary paradox as described by: Taxonomy versus evolution: János  Podani Department of Plant Taxonomy and Ecology, Biological Institute, Eötvös University, Pázmány P. s. 1/c, 1117 Budapest, Hungary. TA XON 58 (4) • Published November 2009:  1049–1053. Accessed on 3 July 2022 via: https://onlinelibrary.wiley.com/doi/epdf/10.1002/tax.584001
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