Q.Name the various fields in which the science of bioinformatics is applied.

Bioinformatics

Modern biology produces oceans of data. A single genome contains billions of DNA letters; sequencing projects generate more information than any human could read in a lifetime. Bioinformatics exists to make sense of this flood — it is the field that uses computers and computational methods to store, retrieve and analyse biological data, especially the sequences of DNA, RNA and proteins.

Why biology needed computers

Before bioinformatics, comparing two genes or searching for a pattern in a protein meant painstaking manual work. As sequencing became fast and cheap, the volume of data exploded far beyond what pen-and-paper methods could handle. Storing this data, keeping it organised, and pulling out meaningful patterns became impossible without computers — so biology and computer science merged.

What bioinformatics actually does

• Storing and organising data in databases — huge collections of gene sequences, protein sequences and 3-D structures that scientists worldwide can search.
• Sequence comparison (alignment): lining up two sequences to see how similar they are, which reveals evolutionary relationships and shared functions.
• Prediction: guessing the 3-D shape of a protein from its amino-acid sequence, or predicting where genes lie within a genome.
• Analysis of large projects such as the Human Genome Project, where the sheer scale made computational analysis essential.

The Human Genome Project connection …