Results 281 to 290 of about 52,301 (321)
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1957
Advance in the study and understanding of the morphology and structure of bacteria has been remarkably rapid in recent years. At the same time, it has been, in a number of respects, exceedingly irregular. This irregularity has manifested itself in diverse ways, although it certainly cannot be held to betoken any lack of general and widespread interest.
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Advance in the study and understanding of the morphology and structure of bacteria has been remarkably rapid in recent years. At the same time, it has been, in a number of respects, exceedingly irregular. This irregularity has manifested itself in diverse ways, although it certainly cannot be held to betoken any lack of general and widespread interest.
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2016
Scholars consider the origins and consequences of the evolution of multicellularity, addressing a range of organisms, experimental protocols, theoretical concepts, and philosophical issues. The evolution of multicellularity raises questions regarding genomic and developmental commonalities and discordances, selective advantages and ...
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Scholars consider the origins and consequences of the evolution of multicellularity, addressing a range of organisms, experimental protocols, theoretical concepts, and philosophical issues. The evolution of multicellularity raises questions regarding genomic and developmental commonalities and discordances, selective advantages and ...
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2002
Abstract The emergence of prokaryotes was a matter of macromolecular chemistry, and chemical networks developed with the emergence of metabolism. The emergence of eukaryotes developed from chimeras of prokaryotes sampling numerous ways of putting functional parts together.
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Abstract The emergence of prokaryotes was a matter of macromolecular chemistry, and chemical networks developed with the emergence of metabolism. The emergence of eukaryotes developed from chimeras of prokaryotes sampling numerous ways of putting functional parts together.
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Stress Responses Co‐Opted for Specialized Cell Types During the Early Evolution of Multicellularity
Bioessays, 2020In a recent Hypothesis article, Wagner et al.[1] proposed amechanisticmodel that links the origin of new cell types to ancestral cellular responses to stress.
A. Nedelcu, R. Michod
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Science Signaling, 2008
Tyrosine kinase (TK) signaling plays an integral role in intercellular communication in multicellular animals (metazoans). There are three molecular components essential for TK signaling: protein tyrosine kinases (PTKs), protein tyrosine phosphatases (PTPs), and SH2 domains (which mediate tyrosine phosphorylation-dependent protein-protein ...
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Tyrosine kinase (TK) signaling plays an integral role in intercellular communication in multicellular animals (metazoans). There are three molecular components essential for TK signaling: protein tyrosine kinases (PTKs), protein tyrosine phosphatases (PTPs), and SH2 domains (which mediate tyrosine phosphorylation-dependent protein-protein ...
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Abstract Multicellularity evolved numerous times within eukaryotes and multicellular eukaryotes form the bulk of biomass on Earth. Since it evolved several times, multicellularity must have a significant evolutionary advantage. While an increase in size is an important factor in the evolution of multicellularity, the key advantage lies ...
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