In this article we will discuss about the determination of DNA sequence. The sequence of bases A, T, G, and C in genes and whole genome can provide useful information for understanding gene structure and organisation, encoded protein and cell behaviour. The first complete nucleotide sequence of an entire viral genome (φX174) was determined in 1977 in the laboratory of [...]
Introduction to Recombinant DNA Technology: Recombinant DNA technology has revolutionised life sciences, opening new vistas for research in molecular biology. It allows genetic manipulation using techniques for synthesizing, amplifying and purifying individual genes from any type of cell. Genomics has emerged as an extension of recombinant DNA technology for high resolution mapping and characterization of whole genomes and gene products [...]
In this article we will discuss about the applications of PCR. i. Detection of mutations: PCR is useful for detection of mutations related to genetic disease including point mutations, insertions and deletions. A notable example is that of the human dystrophin gene associated with Duchenne muscular dystrophy. The large-sized dystrophin gene consists of about two million base pairs located on [...]