Understanding biology at the systems level is the essence of systems biology

Modern molecular biology tends to lead students to think about biology not just at the molecular level, but also at the single entity level. For example, change in promoter sequence leads to higher expression level of target protein. However, biology is an aggregated system, and is more complicated than this. Specifically, there is a sub-discipline … More Understanding biology at the systems level is the essence of systems biology

Correlation in inflation rate in UK and Singapore for Year 2022

I was wondering what drives the increase in inflation in year 2022 after there was a gradual re-opening of the global economy following the COVID-19 pandemic. Looking through some of the data available from a Google search reveals a correlation in the inflation rate in United Kingdom and Singapore as shown in the figure below. … More Correlation in inflation rate in UK and Singapore for Year 2022

Enzyme regulation is mostly underpinned by action at an allosteric site

Enzyme structure determines function. Hence, conformational changes in an enzyme would affect its function. Nature has evolved a system, but which specific conformation of an enzyme is endowed with particular function. This primarily relates to the structure of the active site as well as substrate binding site. Conformational changes, for example, could alter the structure … More Enzyme regulation is mostly underpinned by action at an allosteric site

Inference lies at the heart of formulating conclusions in molecular biology research

Molecular biology kickstarted modern genetic engineering work. But, most of molecular biology research pertains to events that occur at the molecular level such as the sequence that helps RNA polymerase bind to DNA. So, how do researchers in the field make their conclusions? Typically, molecular biology research hinges critically at formulating a clear hypothesis, which … More Inference lies at the heart of formulating conclusions in molecular biology research

Modification of cell surface prevents the attachment of phage to bacteria

Different methods are utilized by bacterial cells for defending against bacteriophages. For example, the CRISPR-Cas system retains a molecular memory of previous phage attack on the cells and uses it to prevent subsequent infection by the same phage. Another approach involves the synthesis of DNA intercalating agents that binds to the newly synthesized DNA of … More Modification of cell surface prevents the attachment of phage to bacteria

Difficulty in estimating the carbon budget that could help limit global warming to 1.5 C

Carbon budget refers to the amount of carbon that could be emitted into the atmosphere before a specific amount of warming takes place due to the greenhouse effect. Current discussion of global warming usually refers to a carbon budget that could limit global warming to 1.5 C above preindustrial levels. A concept that is applicable … More Difficulty in estimating the carbon budget that could help limit global warming to 1.5 C