Linked from
The 13 pages that link to Sequence alignment, each with the reason it gives.
HomologyRelated: Alignments help assess whether sequences share an inherited history.
Comparative genomicsRelated: Alignments reveal conserved and changed regions across genomes.
Carl WoeseRelated: Aligning homologous rRNA regions makes evolutionary comparisons meaningful.
Sequence (biology)Related: Alignment makes sequence similarity and variation easier to interpret.