scholarly journals A Logic-Based Dynamic Modeling Approach to Explicate the Evolution of the Central Dogma of Molecular Biology

2017 ◽  
Author(s):  
Mohieddin Jafari ◽  
Naser Ansari-Pour ◽  
Sadegh Azimzadeh ◽  
Mehdi Mirzaie

AbstractIt is nearly half a century past the age of the introduction of the Central Dogma (CD) of molecular biology. This biological axiom has been developed and currently appears to be all the more complex. In this study, we modified CD by adding further species to the CD information flow and mathematically expressed CD within a dynamic framework by using Boolean network based on its present-day and 1965 editions. We show that the enhancement of the Dogma not only now entails a higher level of complexity, but it also shows a higher level of robustness, thus far more consistent with the nature of biological systems. Using this mathematical modeling approach, we put forward a logic-based expression of our conceptual view of molecular biology. Finally, we show that such biological concepts can be converted into dynamic mathematical models using a logic-based approach and thus may be useful as a framework for improving static conceptual models in biology.

PLoS ONE ◽  
2017 ◽  
Vol 12 (12) ◽  
pp. e0189922 ◽  
Author(s):  
Mohieddin Jafari ◽  
Naser Ansari-Pour ◽  
Sadegh Azimzadeh ◽  
Mehdi Mirzaie

2014 ◽  
Vol 13 (2) ◽  
pp. 338-348 ◽  
Author(s):  
L. Kate Wright ◽  
J. Nick Fisk ◽  
Dina L. Newman

The central dogma of molecular biology, a model that has remained intact for decades, describes the transfer of genetic information from DNA to protein though an RNA intermediate. While recent work has illustrated many exceptions to the central dogma, it is still a common model used to describe and study the relationship between genes and protein products. We investigated understanding of central dogma concepts and found that students are not primed to think about information when presented with the canonical figure of the central dogma. We also uncovered conceptual errors in student interpretation of the meaning of the transcription arrow in the central dogma representation; 36% of students (n = 128; all undergraduate levels) described transcription as a chemical conversion of DNA into RNA or suggested that RNA existed before the process of transcription began. Interviews confirm that students with weak conceptual understanding of information flow find inappropriate meaning in the canonical representation of central dogma. Therefore, we suggest that use of this representation during instruction can be counterproductive unless educators are explicit about the underlying meaning.


2003 ◽  
Vol 6 (4) ◽  
pp. 494-499 ◽  
Author(s):  
Marianne L.L. van Genugten ◽  
Rudolf T. Hoogenveen ◽  
Ina Mulder ◽  
Henriëtte A. Smit ◽  
Jan Jansen ◽  
...  

2021 ◽  
pp. 107140
Author(s):  
Iulia Martina Bulai ◽  
Ana Cristina Esteves ◽  
Fernanda Lima ◽  
Ezio Venturino

1995 ◽  
Vol 112 (5) ◽  
pp. P88-P89
Author(s):  
Norris K. Lee

Educational objectives: To understand basic molecular biological concepts and breakthroughs as they apply to the head and neck cancer model and to envision the future of head and neck cancer treatment, within the context of molecular biology.


2017 ◽  
Vol 155 ◽  
pp. 78-87 ◽  
Author(s):  
Jose Lopez-Collado ◽  
Magdalena Cruz-Rosales ◽  
Julio Vilaboa-Arroniz ◽  
Imelda Martínez-Morales ◽  
Hector Gonzalez-Hernandez

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