linkedin post 2017-12-13 16:05:39

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MODIFIED TRAITS. "We show that the experimental evolution of improved hermaphrodite self-fertility occurred through complex modification of a suite of developmental and reproductive traits: increased sperm production, accelerated oogenesis and ovulation rates, and increased embryo retention in utero." https://lnkd.in/gdtTpDJ View in LinkedIn
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linkedin post 2017-12-14 08:37:38

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UNREDUCED GAMETES. "This phenomenon is important and widespread across numerous eukaryotic taxa, including yeasts, plants, insects, amphibians, reptiles, and fish. Unreduced gametes with somatic chromosome numbers represent a special germplasm in facilitating speciation and the production of new polyploid species." https://lnkd.in/eWhHmsj View in LinkedIn
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linkedin post 2017-12-16 16:09:54

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“IN GENETICS-FIRST origin of life scenarios, it has therefore been suggested that early life may have undergone a ‘hardware upgrade’ (or a succession of upgrades), eventually transitioning from a proto-RNA genetic polymer (or even an inorganic substrate) into RNA-based biochemistry at a later stage in its evolutionary history. This system would then have undergone further hardware upgrades or ‘genetic-takeovers’ to arrive at the DNA–protein world we observe today.” https://lnkd.in/ewsT9EQ View in LinkedIn
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linkedin post 2017-12-16 16:07:08

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RNA TO DNA. “In modern organisms, RNA is a biochemical mediator, enabling the translation of DNA to protein. RNA is unique in that it can fill both roles, acting as both a genetic polymer and a biochemical catalyst, with novel expanded roles for functional RNAs continually being discovered. This has led to the popular ‘RNA world’ hypothesis, where all known life is posited to have descended from an ancestral population of organisms that utilized RNA as their sole major biopolymer prior to the advent of DNA and protein.” http://rsif.royalsocietypublishing.org/content/10/79/20120869 View in LinkedIn
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linkedin post 2017-12-16 16:04:13

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RNA WORLD. “A widely accepted resolution to the seemingly inextricable duality of genotype–phenotype is that the modern ‘DNA–protein’ world evolved from simpler precursor system involving only one major molecular species that played both the role of information carrier and of enzymatic catalyst.” https://lnkd.in/ewsT9EQ View in LinkedIn
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linkedin post 2017-12-16 16:00:44

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GENETICS OR DIGITAL FIRST? “A longstanding debate—often dubbed the chicken or the egg problem—is which came first, genetic heredity or metabolism? A conundrum arises because neither can operate without the other in contemporary life, where the duality is manifested via the genome–proteome systems.” https://lnkd.in/ewsT9EQ View in LinkedIn
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linkedin post 2017-12-16 15:56:49

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TRANSITION OF STATES. “We therefore identify the transition from non-life to life with a fundamental shift in the causal structure of the system, specifically a transition to a state in which algorithmic information gains direct, context-dependent, causal efficacy over matter.” http://rsif.royalsocietypublishing.org/content/10/79/20120869 View in LinkedIn
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