Online class was taken today by
Dr. Seebu Dhingra. The topic of discussion was ‘Molecular Biology’. Students
preparing for Canada and ADC exams attended the class. Questions asked in these
exams were discussed, followed by a doubt session. Molecular biology is a
branch of science concerning biological activity at the molecular level. The
field of molecular biology overlaps with biology and chemistry and in
particular, genetics and biochemistry. A key area of molecular biology concerns
understanding how various cellular systems interact in terms of the way DNA,
RNA and protein synthesis function. Genetics is concerned with the effects of
genes on living organisms, which are often examined through “knock-out”
studies, where animal models are designed so that they lack one or more genes
compared to a “wild type” or regular phenotype. Molecular biology looks at the
molecular mechanisms behind processes such as replication, transcription,
translation and cell function. One way to describe the basis of molecular
biology is to say it concerns understanding how genes are transcribed into RNA
and how RNA is then translated into protein. However, this simplified picture
is currently be reconsidered and revised due to new discoveries concerning the
roles of RNA.
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